Onyx color: hex codes, shades and palettes

Palettes built around onyx. Click any swatch to copy its hex code.

A near-black with the faintest cool cast. Useful as a background where pure black is too harsh but charcoal is too light.

Onyx hex, RGB, HSL and OKLCH

#1F2124

HEX: #1F2124
RGB: rgb(31, 33, 36)
HSL: hsl(216, 7%, 13%)
OKLCH: oklch(24.7% 0.006 258.4)
On white: 16.14:1
On black: 1.30:1

Shades of onyx

9 steps from one base color, generated in OKLCH so each step is an equal perceived step rather than an equal numeric one. Click a swatch to copy it.

Onyx color values

#1F2124rgb(31, 33, 36)

Color spaces of #1f2124
RGB	31	33	36
HSL	216°	7%	13%
HSV	216°	14%	14%
CMYK	0.14	0.08	0.00	0.86
XYZ	1.4273	1.5064	1.8843
Yxy	1.5064	0.2962	0.3127
CIE-Lab	12.6485	-0.1286	-2.3379
Hunter Lab	12.2735	-0.7205	-0.5111
OKLCH	24.7%	0.006	258.4°

#1F2124 is 31 red, 33 green and 36 blue. No single channel dominates it. The nearest of the 216 web safe colors is #333333.

CIE-Lab, XYZ and Yxy are measured against D65, the white point sRGB itself is defined against. Hunter Lab uses the original illuminant C constants, which is what paint and plastics specifications quote, so the two Lab rows are not directly comparable. CMYK is the plain arithmetic conversion: real ink values depend on the press, the paper and the profile.

Base numbers
Base	Red	Green	Blue
Binary	00011111	00100001	00100100
Octal	37	41	44
Decimal	31	33	36
Hex	1F	21	24

#1f2124 mixed with black

Ten even steps of the classic shade ramp, worked out in RGB, which is how the term has always been defined and how other references list it. The OKLCH scale further down this page answers a different question: it steps by equal perceived amounts, so its values are not the same.

#1F2124
#1B1D20
#181A1C
#151719
#121315
#0F1012
#0C0D0E
#09090A
#060607
#030303
#000000

#1f2124 mixed with white

The tint ramp, by the same rule in the other direction.

#1F2124
#353739
#4B4D4F
#626365
#78797B
#8F9091
#A5A6A7
#BBBCBD
#D2D2D3
#E8E8E9
#FFFFFF

Channel shares

Red31.0%
Green33.0%
Blue36.0%

Color schemes

Turned in OKLCH rather than HSL, so every member keeps the lightness and chroma of the original instead of one of them arriving washed out.

Complementary

#1F2124
#23211E

Triadic

#1F2124
#242020
#1F221F

Analogous

#1F2124
#212024
#1E2223

Monochromatic

#000101
#000101
#060709
#1F2124
#3D3F42
#5D6063
#808286

#1f2124 on black and on white

The quick brown fox jumps over the lazy dog. 1.30:1

The quick brown fox jumps over the lazy dog. 16.14:1

Body text needs 4.5:1 to meet AA and large text needs 3:1, so a ratio tells you which of the two backgrounds this color can be read on, and at what size.

CSS for #1f2124

color: #1f2124;
background-color: #1f2124;
border: 3px solid #1f2124;
box-shadow: 1px 1px 3px 2px #1f2124;
text-shadow: 4px 4px 2px rgba(31, 33, 36, 0.8);

/* Perceptually even, and what a modern stylesheet wants */
color: oklch(24.7% 0.006 258.4);

The OKLCH form is the same color stated so that lightening or darkening it moves by an amount the eye agrees with. Every current browser understands it.

Contrast and readability

Onyx on white measures 16.14:1 and on black 1.30:1. WCAG AA asks for 4.5:1 on normal text and 3:1 on large text and UI components, so the higher of those two decides which background it belongs on. In the scale above, 500 is the first to clear 4.5:1 on white, at 5.27:1.

The contrast checker reports every level for a given pair and suggests the nearest passing shade on the same hue. The color picker builds this same scale from any color you paste in.

Related colors: black. See every shade on the colors index.

#003B49

#0A3545

#266068

#562B1D

#5D565C

#473C42

#2C2829

#161313

#151C26

#182D47

#243E61

#3D5169

#697177

#474A4C

#24272A

#07080A

#98A29C

#A4A8A7

#1D1F1E

#7F767D

#684127

#533120

#36281F

#2D1404

#4E3336

#6D3432

#2B1009

#53311C

#646D62

#43483F

#21261E

#060805

#160E2E

#301F4F

#4D3565

#66536D

#4B3F4D

#432546

#321430

#1E0918

#B6B7C0

#82838E

#515259

#26262C

#002925

#06282C

#012630

#0B5981

#191215

#352A2D

#50464A

#6F6468

#21323C

#253040

#15182A

#26232E

#5F3B91

#BB99D6

#4A6600

#2F7A1D

#121312

#2B2D2B

#414D45

#606B67

#9EB3FD

#A7AAFF

#645100

#B8BB79

#004E4B

#005C61

#0C433A

#4F333E

#28563F

#2C4438

#25352C

#002D1D

#2C1D32

#3B2839

#5C5171

#213625

#6F6A6F

#584952

#353233

#1D1719

#334868

#151A30

#254265

#514F10

#45487A

#3A3C56

#2D2E3C

#1D1C3B

#2A1007

#3E2216

#563327

#6C4739