#3F470B#3F470B

#3F470B is a dark, moderate yellow. Relative luminance 0.056; OKLCH L 37.8% C 0.080 H 117.2°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F470B
RGB	rgb(63, 71, 11)
HSL	hsl(68, 73%, 16%)
HSV	hsv(68, 85%, 28%)
CMYK	cmyk(11.3%, 0%, 84.5%, 72.2%)
CIE-LAB	lab(28.35, -12.11, 32.39)
CIE-LCH	lch(28.35, 34.58, 110.51°)
OKLab	oklab(37.82% -0.0366 0.0712)
OKLCH	oklch(37.82% 0.08 117.2)
XYZ	xyz(4.3637, 5.5875, 1.1652)
Luminance	0.0559 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F470B #130B47

analogous

#47310B #3F470B #21470B

triadic

#3F470B #0B3F47 #470B3F

tetradic

#3F470B #0B4731 #130B47 #470B21

square

#3F470B #0B4731 #130B47 #470B21

split-complementary

#3F470B #0B2147 #310B47

monochromatic

#181A04 #181A04 #3F470B #6E7C13 #9DB11B

Accessibility & contrast

On white

9.92

#3F470B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#3F470B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F470B

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F470B	#FFFFFF	#000000	##FFFFFF
##3F470B	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4301

Deuteranopia (green-blind)

#4C4310

Tritanopia (blue-blind)

#44423C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3f470b;
/* rgb */ color: rgb(63, 71, 11);
/* oklch */ color: oklch(37.8% 0.080 117.2);

Tailwind

colors: {
  custom: {
    50: '#767a50',
    500: '#3f470b',
    950: '#000000',
  },
}

SCSS

$custom: #3f470b;
$custom-light: #767a50;
$custom-dark: #000000;

JSON

{
  "hex": "#3f470b",
  "rgb": {
    "r": 63,
    "g": 71,
    "b": 11
  },
  "hsl": {
    "h": 68,
    "s": 73.171,
    "l": 16.078
  },
  "oklch": {
    "l": 0.37816,
    "c": 0.08006,
    "h": 117.2
  },
  "luminance": 0.05587
}

Semantic roles & 50–950 ramp

primary

#3F470B

secondary

#362A83

accent

#38F050

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090902

muted

#7B7B78

Preview Lab

Preview with #3F470B

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

Preview Lab → · Contrast checker → · Palette generator →