#3F450D#3F450D

#3F450D is a dark, moderate yellow. Relative luminance 0.053; OKLCH L 37.3% C 0.076 H 115.5°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#3F450D
RGB	rgb(63, 69, 13)
HSL	hsl(66, 68%, 16%)
HSV	hsv(66, 81%, 27%)
CMYK	cmyk(8.7%, 0%, 81.2%, 72.9%)
CIE-LAB	lab(27.69, -10.83, 30.97)
CIE-LCH	lch(27.69, 32.81, 109.28°)
OKLab	oklab(37.29% -0.0328 0.0686)
OKLCH	oklch(37.29% 0.076 115.5)
XYZ	xyz(4.2508, 5.3421, 1.1879)
Luminance	0.0534 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F450D #130D45

analogous

#452F0D #3F450D #23450D

triadic

#3F450D #0D3F45 #450D3F

tetradic

#3F450D #0D452F #130D45 #450D23

square

#3F450D #0D452F #130D45 #450D23

split-complementary

#3F450D #0D2345 #2F0D45

monochromatic

#181A05 #181A05 #3F450D #6E7817 #9DAC20

Accessibility & contrast

On white

10.15

#3F450D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3F450D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F450D

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F450D	#FFFFFF	#000000	##FFFFFF
##3F450D	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)

#4A4104

Deuteranopia (green-blind)

#4A4212

Tritanopia (blue-blind)

#44413A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f450d;
/* rgb */ color: rgb(63, 69, 13);
/* oklch */ color: oklch(37.3% 0.076 115.5);

Tailwind

colors: {
  custom: {
    50: '#767850',
    500: '#3f450d',
    950: '#000000',
  },
}

SCSS

$custom: #3f450d;
$custom-light: #767850;
$custom-dark: #000000;

JSON

{
  "hex": "#3f450d",
  "rgb": {
    "r": 63,
    "g": 69,
    "b": 13
  },
  "hsl": {
    "h": 66.429,
    "s": 68.293,
    "l": 16.078
  },
  "oklch": {
    "l": 0.37291,
    "c": 0.07608,
    "h": 115.5
  },
  "luminance": 0.05342
}

Semantic roles & 50–950 ramp

primary

#3F450D

secondary

#362D80

accent

#3DEB4F

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090902

muted

#7B7B78

Preview Lab

Preview with #3F450D

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

Preview Lab → · Contrast checker → · Palette generator →