#3F440C#3F440C

#3F440C is a dark, moderate yellow. Relative luminance 0.052; OKLCH L 37.0% C 0.075 H 114.6°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#3F440C
RGB	rgb(63, 68, 12)
HSL	hsl(65, 70%, 16%)
HSV	hsv(65, 82%, 27%)
CMYK	cmyk(7.4%, 0%, 82.4%, 73.3%)
CIE-LAB	lab(27.35, -10.30, 31.05)
CIE-LCH	lch(27.35, 32.71, 108.35°)
OKLab	oklab(37.01% -0.0314 0.0686)
OKLCH	oklch(37.01% 0.075 114.6)
XYZ	xyz(4.1835, 5.2176, 1.1345)
Luminance	0.0522 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F440C #110C44

analogous

#442D0C #3F440C #23440C

triadic

#3F440C #0C3F44 #440C3F

tetradic

#3F440C #0C442D #110C44 #440C23

square

#3F440C #0C442D #110C44 #440C23

split-complementary

#3F440C #0C2344 #2D0C44

monochromatic

#181A05 #181A05 #3F440C #6F7815 #9FAC1E

Accessibility & contrast

On white

10.28

#3F440C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#3F440C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F440C

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F440C	#FFFFFF	#000000	##FFFFFF
##3F440C	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)

#4A4003

Deuteranopia (green-blind)

#494111

Tritanopia (blue-blind)

#443F39

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f440c;
/* rgb */ color: rgb(63, 68, 12);
/* oklch */ color: oklch(37.0% 0.075 114.6);

Tailwind

colors: {
  custom: {
    50: '#767750',
    500: '#3f440c',
    950: '#000000',
  },
}

SCSS

$custom: #3f440c;
$custom-light: #767750;
$custom-dark: #000000;

JSON

{
  "hex": "#3f440c",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 12
  },
  "hsl": {
    "h": 65.357,
    "s": 70,
    "l": 15.686
  },
  "oklch": {
    "l": 0.37014,
    "c": 0.07547,
    "h": 114.6
  },
  "luminance": 0.05218
}

Semantic roles & 50–950 ramp

primary

#3F440C

secondary

#332C80

accent

#3BED4B

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #3F440C

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

Preview Lab → · Contrast checker → · Palette generator →