#3F440A#3F440A

#3F440A is a dark, moderate yellow. Relative luminance 0.052; OKLCH L 37.0% C 0.077 H 114.6°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#3F440A
RGB	rgb(63, 68, 10)
HSL	hsl(65, 74%, 15%)
HSV	hsv(65, 85%, 27%)
CMYK	cmyk(7.4%, 0%, 85.3%, 73.3%)
CIE-LAB	lab(27.33, -10.41, 31.83)
CIE-LCH	lch(27.33, 33.49, 108.11°)
OKLab	oklab(37% -0.0319 0.0698)
OKLCH	oklch(37% 0.077 114.6)
XYZ	xyz(4.1719, 5.2130, 1.0735)
Luminance	0.0521 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F440A #0F0A44

analogous

#442C0A #3F440A #22440A

triadic

#3F440A #0A3F44 #440A3F

tetradic

#3F440A #0A442C #0F0A44 #440A22

square

#3F440A #0A442C #0F0A44 #440A22

split-complementary

#3F440A #0A2244 #2C0A44

monochromatic

#191B04 #191B04 #3F440A #707912 #A2AF1A

Accessibility & contrast

On white

10.28

#3F440A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#3F440A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F440A

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F440A	#FFFFFF	#000000	##FFFFFF
##3F440A	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4001

Deuteranopia (green-blind)

#49410F

Tritanopia (blue-blind)

#443F39

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f440a;
/* rgb */ color: rgb(63, 68, 10);
/* oklch */ color: oklch(37.0% 0.077 114.6);

Tailwind

colors: {
  custom: {
    50: '#76774f',
    500: '#3f440a',
    950: '#000000',
  },
}

SCSS

$custom: #3f440a;
$custom-light: #76774f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f440a",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 10
  },
  "hsl": {
    "h": 65.172,
    "s": 74.359,
    "l": 15.294
  },
  "oklch": {
    "l": 0.37,
    "c": 0.07679,
    "h": 114.6
  },
  "luminance": 0.05213
}

Semantic roles & 50–950 ramp

primary

#3F440A

secondary

#302981

accent

#37F147

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #3F440A

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

Preview Lab → · Contrast checker → · Palette generator →