#231F00#231F00

#231F00 is a very dark, muted yellow. Relative luminance 0.013; OKLCH L 23.6% C 0.050 H 102.5°. Best body text is #FFFFFF at 16.57:1 contrast (WCAG AA passes).

Color values

HEX	#231F00
RGB	rgb(35, 31, 0)
HSL	hsl(53, 100%, 7%)
HSV	hsv(53, 100%, 14%)
CMYK	cmyk(0%, 11.4%, 100%, 86.3%)
CIE-LAB	lab(11.53, -2.80, 17.09)
CIE-LCH	lch(11.53, 17.32, 99.32°)
OKLab	oklab(23.64% -0.0108 0.0484)
OKLCH	oklch(23.64% 0.05 102.5)
XYZ	xyz(1.1832, 1.3374, 0.1958)
Luminance	0.0134 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F00 #000423

analogous

#230E00 #231F00 #162300

triadic

#231F00 #00231F #1F0023

tetradic

#231F00 #00230E #000423 #230016

square

#231F00 #00230E #000423 #230016

split-complementary

#231F00 #001623 #0E0023

monochromatic

#1F1B00 #1F1B00 #231F00 #605500 #9D8B00

Accessibility & contrast

On white

16.57

#231F00 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#231F00 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F00

16.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F00	#FFFFFF	#000000	##FFFFFF
##231F00	1.00	16.57	1.27	16.57
#FFFFFF	16.57	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231E00

Deuteranopia (green-blind)

#241F01

Tritanopia (blue-blind)

#271C19

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #231f00;
/* rgb */ color: rgb(35, 31, 0);
/* oklch */ color: oklch(23.6% 0.050 102.5);

Tailwind

colors: {
  custom: {
    50: '#5e5a46',
    500: '#231f00',
    950: '#000000',
  },
}

SCSS

$custom: #231f00;
$custom-light: #5e5a46;
$custom-dark: #000000;

JSON

{
  "hex": "#231f00",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 0
  },
  "hsl": {
    "h": 53.143,
    "s": 100,
    "l": 6.863
  },
  "oklch": {
    "l": 0.23641,
    "c": 0.04961,
    "h": 102.5
  },
  "luminance": 0.01337
}

Semantic roles & 50–950 ramp

primary

#231F00

secondary

#131D6C

accent

#41FF29

background

#F5F5F3

surface

#E9E9E5

border

#C5C5C1

text

#040300

muted

#797877

Preview Lab

Preview with #231F00

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

Preview Lab → · Contrast checker → · Palette generator →