#40430F#40430F

#40430F is a dark, moderate yellow. Relative luminance 0.051; OKLCH L 36.9% C 0.072 H 112.7°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#40430F
RGB	rgb(64, 67, 15)
HSL	hsl(63, 63%, 16%)
HSV	hsv(63, 78%, 26%)
CMYK	cmyk(4.5%, 0%, 77.6%, 73.7%)
CIE-LAB	lab(27.13, -9.01, 29.58)
CIE-LCH	lch(27.13, 30.92, 106.94°)
OKLab	oklab(36.87% -0.0276 0.0661)
OKLCH	oklch(36.87% 0.072 112.7)
XYZ	xyz(4.2079, 5.1389, 1.2221)
Luminance	0.0514 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40430F #120F43

analogous

#432C0F #40430F #26430F

triadic

#40430F #0F4043 #430F40

tetradic

#40430F #0F432C #120F43 #430F26

square

#40430F #0F432C #120F43 #430F26

split-complementary

#40430F #0F2643 #2C0F43

monochromatic

#181906 #181906 #40430F #70751A #A0A725

Accessibility & contrast

On white

10.36

#40430F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#40430F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40430F

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40430F	#FFFFFF	#000000	##FFFFFF
##40430F	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#493F07

Deuteranopia (green-blind)

#494113

Tritanopia (blue-blind)

#453E39

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #40430f;
/* rgb */ color: rgb(64, 67, 15);
/* oklch */ color: oklch(36.9% 0.072 112.7);

Tailwind

colors: {
  custom: {
    50: '#777751',
    500: '#40430f',
    950: '#000000',
  },
}

SCSS

$custom: #40430f;
$custom-light: #777751;
$custom-dark: #000000;

JSON

{
  "hex": "#40430f",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 15
  },
  "hsl": {
    "h": 63.462,
    "s": 63.415,
    "l": 16.078
  },
  "oklch": {
    "l": 0.36869,
    "c": 0.07161,
    "h": 112.7
  },
  "luminance": 0.05139
}

Semantic roles & 50–950 ramp

primary

#40430F

secondary

#35307D

accent

#41E64B

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #40430F

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

Preview Lab → · Contrast checker → · Palette generator →