#3F400E#3F400E

#3F400E is a dark, moderate yellow. Relative luminance 0.048; OKLCH L 36.0% C 0.069 H 110.5°. Best body text is #FFFFFF at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F400E
RGB	rgb(63, 64, 14)
HSL	hsl(61, 64%, 15%)
HSV	hsv(61, 78%, 25%)
CMYK	cmyk(1.6%, 0%, 78.1%, 74.9%)
CIE-LAB	lab(26.03, -7.77, 28.90)
CIE-LCH	lch(26.03, 29.93, 105.05°)
OKLab	oklab(35.96% -0.0242 0.0645)
OKLCH	oklch(35.96% 0.069 110.5)
XYZ	xyz(3.9627, 4.7554, 1.1245)
Luminance	0.0476 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F400E #0F0E40

analogous

#40280E #3F400E #26400E

triadic

#3F400E #0E3F40 #400E3F

tetradic

#3F400E #0E4028 #0F0E40 #400E26

square

#3F400E #0E4028 #0F0E40 #400E26

split-complementary

#3F400E #0E2640 #280E40

monochromatic

#191905 #191905 #3F400E #707219 #A2A424

Accessibility & contrast

On white

10.76

#3F400E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#3F400E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F400E

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F400E	#FFFFFF	#000000	##FFFFFF
##3F400E	1.00	10.76	1.95	10.76
#FFFFFF	10.76	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463D06

Deuteranopia (green-blind)

#463E12

Tritanopia (blue-blind)

#443C36

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3f400e;
/* rgb */ color: rgb(63, 64, 14);
/* oklch */ color: oklch(36.0% 0.069 110.5);

Tailwind

colors: {
  custom: {
    50: '#767450',
    500: '#3f400e',
    950: '#000000',
  },
}

SCSS

$custom: #3f400e;
$custom-light: #767450;
$custom-dark: #000000;

JSON

{
  "hex": "#3f400e",
  "rgb": {
    "r": 63,
    "g": 64,
    "b": 14
  },
  "hsl": {
    "h": 61.2,
    "s": 64.103,
    "l": 15.294
  },
  "oklch": {
    "l": 0.35962,
    "c": 0.06887,
    "h": 110.5
  },
  "luminance": 0.04755
}

Semantic roles & 50–950 ramp

primary

#3F400E

secondary

#302F7B

accent

#41E744

background

#F7F7F4

surface

#EDEDE7

border

#C8C8C3

text

#090802

muted

#7B7B78

Preview Lab

Preview with #3F400E

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

Preview Lab → · Contrast checker → · Palette generator →