#3F430A#3F430A

#3F430A is a dark, moderate yellow. Relative luminance 0.051; OKLCH L 36.7% C 0.076 H 113.6°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#3F430A
RGB	rgb(63, 67, 10)
HSL	hsl(64, 74%, 15%)
HSV	hsv(64, 85%, 26%)
CMYK	cmyk(6%, 0%, 85.1%, 73.7%)
CIE-LAB	lab(27.00, -9.81, 31.52)
CIE-LCH	lch(27.00, 33.01, 107.29°)
OKLab	oklab(36.73% -0.0303 0.0692)
OKLCH	oklch(36.73% 0.076 113.6)
XYZ	xyz(4.1120, 5.0931, 1.0536)
Luminance	0.0509 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F430A #0E0A43

analogous

#432B0A #3F430A #22430A

triadic

#3F430A #0A3F43 #430A3F

tetradic

#3F430A #0A432B #0E0A43 #430A22

square

#3F430A #0A432B #0E0A43 #430A22

split-complementary

#3F430A #0A2243 #2B0A43

monochromatic

#191B04 #191B04 #3F430A #717812 #A3AE1A

Accessibility & contrast

On white

10.40

#3F430A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#3F430A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F430A

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F430A	#FFFFFF	#000000	##FFFFFF
##3F430A	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#493F01

Deuteranopia (green-blind)

#49400F

Tritanopia (blue-blind)

#443E38

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3f430a;
/* rgb */ color: rgb(63, 67, 10);
/* oklch */ color: oklch(36.7% 0.076 113.6);

Tailwind

colors: {
  custom: {
    50: '#76774e',
    500: '#3f430a',
    950: '#000000',
  },
}

SCSS

$custom: #3f430a;
$custom-light: #76774e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f430a",
  "rgb": {
    "r": 63,
    "g": 67,
    "b": 10
  },
  "hsl": {
    "h": 64.211,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.36731,
    "c": 0.07551,
    "h": 113.6
  },
  "luminance": 0.05093
}

Semantic roles & 50–950 ramp

primary

#3F430A

secondary

#2F2980

accent

#37F144

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #3F430A

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

Preview Lab → · Contrast checker → · Palette generator →