#40420B#40420B

#40420B is a dark, moderate yellow. Relative luminance 0.050; OKLCH L 36.6% C 0.073 H 111.6°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#40420B
RGB	rgb(64, 66, 11)
HSL	hsl(62, 71%, 15%)
HSV	hsv(62, 83%, 26%)
CMYK	cmyk(3%, 0%, 83.3%, 74.1%)
CIE-LAB	lab(26.77, -8.65, 30.94)
CIE-LCH	lch(26.77, 32.13, 105.62°)
OKLab	oklab(36.57% -0.027 0.0681)
OKLCH	oklch(36.57% 0.073 111.6)
XYZ	xyz(4.1231, 5.0107, 1.0665)
Luminance	0.0501 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40420B #0D0B42

analogous

#42290B #40420B #24420B

triadic

#40420B #0B4042 #420B40

tetradic

#40420B #0B4229 #0D0B42 #420B24

square

#40420B #0B4229 #0D0B42 #420B24

split-complementary

#40420B #0B2442 #290B42

monochromatic

#191A04 #191A04 #40420B #737614 #A6AB1C

Accessibility & contrast

On white

10.49

#40420B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#40420B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40420B

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40420B	#FFFFFF	#000000	##FFFFFF
##40420B	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F02

Deuteranopia (green-blind)

#48400F

Tritanopia (blue-blind)

#453D38

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #40420b;
/* rgb */ color: rgb(64, 66, 11);
/* oklch */ color: oklch(36.6% 0.073 111.6);

Tailwind

colors: {
  custom: {
    50: '#77764f',
    500: '#40420b',
    950: '#000000',
  },
}

SCSS

$custom: #40420b;
$custom-light: #77764f;
$custom-dark: #000000;

JSON

{
  "hex": "#40420b",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 11
  },
  "hsl": {
    "h": 62.182,
    "s": 71.429,
    "l": 15.098
  },
  "oklch": {
    "l": 0.3657,
    "c": 0.07328,
    "h": 111.6
  },
  "luminance": 0.05011
}

Semantic roles & 50–950 ramp

primary

#40420B

secondary

#2D2A7F

accent

#3AEE40

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #40420B

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

Preview Lab → · Contrast checker → · Palette generator →