#231F09#231F09

#231F09 is a very dark, muted yellow. Relative luminance 0.014; OKLCH L 23.8% C 0.037 H 99.2°. Best body text is #FFFFFF at 16.52:1 contrast (WCAG AA passes).

Color values

HEX	#231F09
RGB	rgb(35, 31, 9)
HSL	hsl(51, 59%, 9%)
HSV	hsv(51, 74%, 14%)
CMYK	cmyk(0%, 11.4%, 74.3%, 86.3%)
CIE-LAB	lab(11.67, -1.80, 13.61)
CIE-LCH	lch(11.67, 13.72, 97.52°)
OKLab	oklab(23.79% -0.0058 0.036)
OKLCH	oklch(23.79% 0.037 99.2)
XYZ	xyz(1.2325, 1.3571, 0.4554)
Luminance	0.0136 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F09 #090D23

analogous

#231209 #231F09 #1A2309

triadic

#231F09 #09231F #1F0923

tetradic

#231F09 #092312 #090D23 #23091A

square

#231F09 #092312 #090D23 #23091A

split-complementary

#231F09 #091A23 #120923

monochromatic

#181606 #181606 #231F09 #544A16 #847522

Accessibility & contrast

On white

16.52

#231F09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#231F09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F09

16.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F09	#FFFFFF	#000000	##FFFFFF
##231F09	1.00	16.52	1.27	16.52
#FFFFFF	16.52	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231E07

Deuteranopia (green-blind)

#241F0A

Tritanopia (blue-blind)

#261C1A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #231f09;
/* rgb */ color: rgb(35, 31, 9);
/* oklch */ color: oklch(23.8% 0.037 99.2);

Tailwind

colors: {
  custom: {
    50: '#5e5a4a',
    500: '#231f09',
    950: '#000000',
  },
}

SCSS

$custom: #231f09;
$custom-light: #5e5a4a;
$custom-dark: #000000;

JSON

{
  "hex": "#231f09",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 9
  },
  "hsl": {
    "h": 50.769,
    "s": 59.091,
    "l": 8.627
  },
  "oklch": {
    "l": 0.23791,
    "c": 0.03651,
    "h": 99.2
  },
  "luminance": 0.01357
}

Semantic roles & 50–950 ramp

primary

#231F09

secondary

#283060

accent

#5EE246

background

#F5F5F4

surface

#E9E9E7

border

#C5C5C3

text

#040301

muted

#797877

Preview Lab

Preview with #231F09

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

Preview Lab → · Contrast checker → · Palette generator →