#40430B#40430B

#40430B is a dark, moderate yellow. Relative luminance 0.051; OKLCH L 36.8% C 0.075 H 112.6°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#40430B
RGB	rgb(64, 67, 11)
HSL	hsl(63, 72%, 15%)
HSV	hsv(63, 84%, 26%)
CMYK	cmyk(4.5%, 0%, 83.6%, 73.7%)
CIE-LAB	lab(27.10, -9.25, 31.25)
CIE-LCH	lch(27.10, 32.59, 106.49°)
OKLab	oklab(36.84% -0.0287 0.0688)
OKLCH	oklch(36.84% 0.075 112.6)
XYZ	xyz(4.1820, 5.1286, 1.0862)
Luminance	0.0513 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40430B #0E0B43

analogous

#432A0B #40430B #24430B

triadic

#40430B #0B4043 #430B40

tetradic

#40430B #0B432A #0E0B43 #430B24

square

#40430B #0B432A #0E0B43 #430B24

split-complementary

#40430B #0B2443 #2A0B43

monochromatic

#191A04 #191A04 #40430B #727814 #A4AC1C

Accessibility & contrast

On white

10.37

#40430B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#40430B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40430B

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40430B	#FFFFFF	#000000	##FFFFFF
##40430B	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#493F02

Deuteranopia (green-blind)

#494110

Tritanopia (blue-blind)

#453E38

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #40430b;
/* rgb */ color: rgb(64, 67, 11);
/* oklch */ color: oklch(36.8% 0.075 112.6);

Tailwind

colors: {
  custom: {
    50: '#77774f',
    500: '#40430b',
    950: '#000000',
  },
}

SCSS

$custom: #40430b;
$custom-light: #77774f;
$custom-dark: #000000;

JSON

{
  "hex": "#40430b",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 11
  },
  "hsl": {
    "h": 63.214,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.36836,
    "c": 0.07453,
    "h": 112.6
  },
  "luminance": 0.05128
}

Semantic roles & 50–950 ramp

primary

#40430B

secondary

#2F2A80

accent

#39EF43

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #40430B

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

Preview Lab → · Contrast checker → · Palette generator →