#3F450A#3F450A

#3F450A is a dark, moderate yellow. Relative luminance 0.053; OKLCH L 37.3% C 0.078 H 115.5°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#3F450A
RGB	rgb(63, 69, 10)
HSL	hsl(66, 75%, 15%)
HSV	hsv(66, 86%, 27%)
CMYK	cmyk(8.7%, 0%, 85.5%, 72.9%)
CIE-LAB	lab(27.67, -11.00, 32.14)
CIE-LCH	lch(27.67, 33.96, 108.89°)
OKLab	oklab(37.27% -0.0336 0.0705)
OKLCH	oklch(37.27% 0.078 115.5)
XYZ	xyz(4.2329, 5.3350, 1.0939)
Luminance	0.0534 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F450A #100A45

analogous

#452D0A #3F450A #21450A

triadic

#3F450A #0A3F45 #450A3F

tetradic

#3F450A #0A452D #100A45 #450A21

square

#3F450A #0A452D #100A45 #450A21

split-complementary

#3F450A #0A2145 #2D0A45

monochromatic

#181B04 #181B04 #3F450A #707A12 #A1B019

Accessibility & contrast

On white

10.16

#3F450A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3F450A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F450A

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F450A	#FFFFFF	#000000	##FFFFFF
##3F450A	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4100

Deuteranopia (green-blind)

#4A420F

Tritanopia (blue-blind)

#44403A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f450a;
/* rgb */ color: rgb(63, 69, 10);
/* oklch */ color: oklch(37.3% 0.078 115.5);

Tailwind

colors: {
  custom: {
    50: '#76784f',
    500: '#3f450a',
    950: '#000000',
  },
}

SCSS

$custom: #3f450a;
$custom-light: #76784f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f450a",
  "rgb": {
    "r": 63,
    "g": 69,
    "b": 10
  },
  "hsl": {
    "h": 66.102,
    "s": 74.684,
    "l": 15.49
  },
  "oklch": {
    "l": 0.37269,
    "c": 0.07808,
    "h": 115.5
  },
  "luminance": 0.05335
}

Semantic roles & 50–950 ramp

primary

#3F450A

secondary

#322982

accent

#36F149

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090902

muted

#7B7B78

Preview Lab

Preview with #3F450A

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

Preview Lab → · Contrast checker → · Palette generator →