#3F450F#3F450F

#3F450F is a dark, moderate yellow. Relative luminance 0.053; OKLCH L 37.3% C 0.075 H 115.6°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#3F450F
RGB	rgb(63, 69, 15)
HSL	hsl(67, 64%, 16%)
HSV	hsv(67, 78%, 27%)
CMYK	cmyk(8.7%, 0%, 78.3%, 72.9%)
CIE-LAB	lab(27.70, -10.71, 30.12)
CIE-LCH	lch(27.70, 31.97, 109.57°)
OKLab	oklab(37.31% -0.0322 0.0673)
OKLCH	oklch(37.31% 0.075 115.6)
XYZ	xyz(4.2644, 5.3476, 1.2594)
Luminance	0.0535 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F450F #150F45

analogous

#45300F #3F450F #24450F

triadic

#3F450F #0F3F45 #450F3F

tetradic

#3F450F #0F4530 #150F45 #450F24

square

#3F450F #0F4530 #150F45 #450F24

split-complementary

#3F450F #0F2445 #300F45

monochromatic

#171905 #171905 #3F450F #6D771A #9BAA25

Accessibility & contrast

On white

10.15

#3F450F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3F450F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F450F

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F450F	#FFFFFF	#000000	##FFFFFF
##3F450F	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4106

Deuteranopia (green-blind)

#4A4213

Tritanopia (blue-blind)

#44413A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f450f;
/* rgb */ color: rgb(63, 69, 15);
/* oklch */ color: oklch(37.3% 0.075 115.6);

Tailwind

colors: {
  custom: {
    50: '#767851',
    500: '#3f450f',
    950: '#000000',
  },
}

SCSS

$custom: #3f450f;
$custom-light: #767851;
$custom-dark: #000000;

JSON

{
  "hex": "#3f450f",
  "rgb": {
    "r": 63,
    "g": 69,
    "b": 15
  },
  "hsl": {
    "h": 66.667,
    "s": 64.286,
    "l": 16.471
  },
  "oklch": {
    "l": 0.37307,
    "c": 0.07458,
    "h": 115.6
  },
  "luminance": 0.05347
}

Semantic roles & 50–950 ramp

primary

#3F450F

secondary

#39307F

accent

#41E753

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090902

muted

#7B7B78

Preview Lab

Preview with #3F450F

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

Preview Lab → · Contrast checker → · Palette generator →