#231C01#231C01

#231C01 is a very dark, muted yellow. Relative luminance 0.012; OKLCH L 22.8% C 0.045 H 95.4°. Best body text is #FFFFFF at 16.96:1 contrast (WCAG AA passes).

Color values

HEX	#231C01
RGB	rgb(35, 28, 1)
HSL	hsl(48, 94%, 7%)
HSV	hsv(48, 97%, 14%)
CMYK	cmyk(0%, 20%, 97.1%, 86.3%)
CIE-LAB	lab(10.48, -0.58, 15.22)
CIE-LCH	lch(10.48, 15.23, 92.20°)
OKLab	oklab(22.81% -0.0042 0.045)
OKLCH	oklch(22.81% 0.045 95.4)
XYZ	xyz(1.1139, 1.1901, 0.1997)
Luminance	0.0119 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C01 #010823

analogous

#230B01 #231C01 #192301

triadic

#231C01 #01231C #1C0123

tetradic

#231C01 #01230B #010823 #230119

square

#231C01 #01230B #010823 #230119

split-complementary

#231C01 #011923 #0B0123

monochromatic

#1E1801 #1E1801 #231C01 #5F4C03 #9A7B04

Accessibility & contrast

On white

16.96

#231C01 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#231C01 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C01

16.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C01	#FFFFFF	#000000	##FFFFFF
##231C01	1.00	16.96	1.24	16.96
#FFFFFF	16.96	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201B00

Deuteranopia (green-blind)

#221D02

Tritanopia (blue-blind)

#271916

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #231c01;
/* rgb */ color: rgb(35, 28, 1);
/* oklch */ color: oklch(22.8% 0.045 95.4);

Tailwind

colors: {
  custom: {
    50: '#5e5747',
    500: '#231c01',
    950: '#000000',
  },
}

SCSS

$custom: #231c01;
$custom-light: #5e5747;
$custom-dark: #000000;

JSON

{
  "hex": "#231c01",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 1
  },
  "hsl": {
    "h": 47.647,
    "s": 94.444,
    "l": 7.059
  },
  "oklch": {
    "l": 0.22813,
    "c": 0.04521,
    "h": 95.4
  },
  "luminance": 0.0119
}

Semantic roles & 50–950 ramp

primary

#231C01

secondary

#16276A

accent

#55FF29

background

#F5F5F3

surface

#E9E9E5

border

#C5C5C1

text

#040300

muted

#797877

Preview Lab

Preview with #231C01

Body copy rendered with the generated semantic roles for this colour.

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