#40400C#40400C

#40400C is a dark, moderate yellow. Relative luminance 0.048; OKLCH L 36.0% C 0.070 H 109.5°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#40400C
RGB	rgb(64, 64, 12)
HSL	hsl(60, 68%, 15%)
HSV	hsv(60, 81%, 25%)
CMYK	cmyk(0%, 0%, 81.2%, 74.9%)
CIE-LAB	lab(26.11, -7.38, 29.90)
CIE-LCH	lch(26.11, 30.80, 103.86°)
OKLab	oklab(36.05% -0.0234 0.0661)
OKLCH	oklch(36.05% 0.07 109.5)
XYZ	xyz(4.0143, 4.7834, 1.0596)
Luminance	0.0478 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40400C #0C0C40

analogous

#40260C #40400C #26400C

triadic

#40400C #0C4040 #400C40

tetradic

#40400C #0C4026 #0C0C40 #400C26

square

#40400C #0C4026 #0C0C40 #400C26

split-complementary

#40400C #0C2640 #260C40

monochromatic

#1A1A05 #1A1A05 #40400C #747416 #A7A71F

Accessibility & contrast

On white

10.73

#40400C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#40400C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40400C

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40400C	#FFFFFF	#000000	##FFFFFF
##40400C	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463D04

Deuteranopia (green-blind)

#463F10

Tritanopia (blue-blind)

#453B36

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #40400c;
/* rgb */ color: rgb(64, 64, 12);
/* oklch */ color: oklch(36.0% 0.070 109.5);

Tailwind

colors: {
  custom: {
    50: '#77744f',
    500: '#40400c',
    950: '#000000',
  },
}

SCSS

$custom: #40400c;
$custom-light: #77744f;
$custom-dark: #000000;

JSON

{
  "hex": "#40400c",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 12
  },
  "hsl": {
    "h": 60,
    "s": 68.421,
    "l": 14.902
  },
  "oklch": {
    "l": 0.36047,
    "c": 0.07015,
    "h": 109.5
  },
  "luminance": 0.04783
}

Semantic roles & 50–950 ramp

primary

#40400C

secondary

#2C2C7C

accent

#3DEB3D

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #40400C

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

Preview Lab → · Contrast checker → · Palette generator →