#51400C#51400C

#51400C is a dark, moderate yellow. Relative luminance 0.054; OKLCH L 38.0% C 0.070 H 89.6°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#51400C
RGB	rgb(81, 64, 12)
HSL	hsl(45, 74%, 18%)
HSV	hsv(45, 85%, 32%)
CMYK	cmyk(0%, 21%, 85.2%, 68.2%)
CIE-LAB	lab(27.96, 1.45, 32.30)
CIE-LCH	lch(27.96, 32.34, 87.42°)
OKLab	oklab(37.95% 0.0005 0.0704)
OKLCH	oklch(37.95% 0.07 89.6)
XYZ	xyz(5.2934, 5.4430, 1.1196)
Luminance	0.0544 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51400C #0C1D51

analogous

#511D0C #51400C #3F510C

triadic

#51400C #0C5140 #400C51

tetradic

#51400C #0C511D #0C1D51 #510C3F

square

#51400C #0C511D #0C1D51 #510C3F

split-complementary

#51400C #0C3F51 #1D0C51

monochromatic

#1B1504 #1C1604 #51400C #866A14 #BC941C

Accessibility & contrast

On white

10.05

#51400C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#51400C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51400C

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51400C	#FFFFFF	#000000	##FFFFFF
##51400C	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#493F04

Deuteranopia (green-blind)

#4D440F

Tritanopia (blue-blind)

#583A36

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #51400c;
/* rgb */ color: rgb(81, 64, 12);
/* oklch */ color: oklch(38.0% 0.070 89.6);

Tailwind

colors: {
  custom: {
    50: '#857450',
    500: '#51400c',
    950: '#000000',
  },
}

SCSS

$custom: #51400c;
$custom-light: #857450;
$custom-dark: #000000;

JSON

{
  "hex": "#51400c",
  "rgb": {
    "r": 81,
    "g": 64,
    "b": 12
  },
  "hsl": {
    "h": 45.217,
    "s": 74.194,
    "l": 18.235
  },
  "oklch": {
    "l": 0.37954,
    "c": 0.07042,
    "h": 89.6
  },
  "luminance": 0.05443
}

Semantic roles & 50–950 ramp

primary

#51400C

secondary

#2C448C

accent

#65F137

background

#F8F7F4

surface

#F0EDE7

border

#CBC8C3

text

#0B0802

muted

#7C7B78

Preview Lab

Preview with #51400C

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

Preview Lab → · Contrast checker → · Palette generator →