#51501B#51501B

#51501B is a dark, moderate yellow. Relative luminance 0.076; OKLCH L 42.0% C 0.073 H 108.2°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#51501B
RGB	rgb(81, 80, 27)
HSL	hsl(59, 50%, 21%)
HSV	hsv(59, 67%, 32%)
CMYK	cmyk(0%, 1.2%, 66.7%, 68.2%)
CIE-LAB	lab(33.06, -7.43, 30.48)
CIE-LCH	lch(33.06, 31.37, 103.69°)
OKLab	oklab(42.04% -0.0228 0.0696)
OKLCH	oklch(42.04% 0.073 108.2)
XYZ	xyz(6.4600, 7.5660, 2.1568)
Luminance	0.0757 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51501B #1B1C51

analogous

#51351B #51501B #37511B

triadic

#51501B #1B5150 #501B51

tetradic

#51501B #1B5135 #1B1C51 #511B37

square

#51501B #1B5135 #1B1C51 #511B37

split-complementary

#51501B #1B3751 #351B51

monochromatic

#171708 #23230C #51501B #7F7D2A #ADAB3A

Accessibility & contrast

On white

8.36

#51501B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#51501B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51501B

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51501B	#FFFFFF	#000000	##FFFFFF
##51501B	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574D15

Deuteranopia (green-blind)

#584F1E

Tritanopia (blue-blind)

#574B45

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #51501b;
/* rgb */ color: rgb(81, 80, 27);
/* oklch */ color: oklch(42.0% 0.073 108.2);

Tailwind

colors: {
  custom: {
    50: '#84805a',
    500: '#51501b',
    950: '#000000',
  },
}

SCSS

$custom: #51501b;
$custom-light: #84805a;
$custom-dark: #000000;

JSON

{
  "hex": "#51501b",
  "rgb": {
    "r": 81,
    "g": 80,
    "b": 27
  },
  "hsl": {
    "h": 58.889,
    "s": 50,
    "l": 21.176
  },
  "oklch": {
    "l": 0.42039,
    "c": 0.07326,
    "h": 108.2
  },
  "luminance": 0.07566
}

Semantic roles & 50–950 ramp

primary

#51501B

secondary

#414287

accent

#51DA4E

background

#F8F7F5

surface

#EFEEE9

border

#CAC9C5

text

#0B0A04

muted

#7C7C79

Preview Lab

Preview with #51501B

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

Preview Lab → · Contrast checker → · Palette generator →