#3F430F#3F430F

#3F430F is a dark, moderate yellow. Relative luminance 0.051; OKLCH L 36.8% C 0.072 H 113.7°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#3F430F
RGB	rgb(63, 67, 15)
HSL	hsl(65, 63%, 16%)
HSV	hsv(65, 78%, 26%)
CMYK	cmyk(6%, 0%, 77.6%, 73.7%)
CIE-LAB	lab(27.03, -9.52, 29.45)
CIE-LCH	lch(27.03, 30.95, 107.91°)
OKLab	oklab(36.77% -0.0289 0.0659)
OKLCH	oklch(36.77% 0.072 113.7)
XYZ	xyz(4.1434, 5.1056, 1.2191)
Luminance	0.0511 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F430F #130F43

analogous

#432D0F #3F430F #25430F

triadic

#3F430F #0F3F43 #430F3F

tetradic

#3F430F #0F432D #130F43 #430F25

square

#3F430F #0F432D #130F43 #430F25

split-complementary

#3F430F #0F2543 #2D0F43

monochromatic

#181906 #181906 #3F430F #6E751A #9DA725

Accessibility & contrast

On white

10.39

#3F430F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#3F430F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F430F

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F430F	#FFFFFF	#000000	##FFFFFF
##3F430F	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F07

Deuteranopia (green-blind)

#484013

Tritanopia (blue-blind)

#443F39

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3f430f;
/* rgb */ color: rgb(63, 67, 15);
/* oklch */ color: oklch(36.8% 0.072 113.7);

Tailwind

colors: {
  custom: {
    50: '#767751',
    500: '#3f430f',
    950: '#000000',
  },
}

SCSS

$custom: #3f430f;
$custom-light: #767751;
$custom-dark: #000000;

JSON

{
  "hex": "#3f430f",
  "rgb": {
    "r": 63,
    "g": 67,
    "b": 15
  },
  "hsl": {
    "h": 64.615,
    "s": 63.415,
    "l": 16.078
  },
  "oklch": {
    "l": 0.36771,
    "c": 0.07192,
    "h": 113.7
  },
  "luminance": 0.05106
}

Semantic roles & 50–950 ramp

primary

#3F430F

secondary

#36307D

accent

#41E64E

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #3F430F

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

Preview Lab → · Contrast checker → · Palette generator →