#40380F#40380F

#40380F is a dark, muted yellow. Relative luminance 0.040; OKLCH L 34.0% C 0.059 H 98.1°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#40380F
RGB	rgb(64, 56, 15)
HSL	hsl(50, 62%, 15%)
HSV	hsv(50, 77%, 25%)
CMYK	cmyk(0%, 12.5%, 76.6%, 74.9%)
CIE-LAB	lab(23.52, -2.18, 25.91)
CIE-LCH	lch(23.52, 26.00, 94.81°)
OKLab	oklab(33.99% -0.0083 0.0583)
OKLCH	oklch(33.99% 0.059 98.1)
XYZ	xyz(3.6149, 3.9530, 1.0244)
Luminance	0.0395 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40380F #0F1740

analogous

#401F0F #40380F #2F400F

triadic

#40380F #0F4038 #380F40

tetradic

#40380F #0F401F #0F1740 #400F2F

square

#40380F #0F401F #0F1740 #400F2F

split-complementary

#40380F #0F2F40 #1F0F40

monochromatic

#191606 #191606 #40380F #72631B #A38F26

Accessibility & contrast

On white

11.73

#40380F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#40380F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40380F

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40380F	#FFFFFF	#000000	##FFFFFF
##40380F	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E360A

Deuteranopia (green-blind)

#403911

Tritanopia (blue-blind)

#463330

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #40380f;
/* rgb */ color: rgb(64, 56, 15);
/* oklch */ color: oklch(34.0% 0.059 98.1);

Tailwind

colors: {
  custom: {
    50: '#776e50',
    500: '#40380f',
    950: '#000000',
  },
}

SCSS

$custom: #40380f;
$custom-light: #776e50;
$custom-dark: #000000;

JSON

{
  "hex": "#40380f",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 15
  },
  "hsl": {
    "h": 50.204,
    "s": 62.025,
    "l": 15.49
  },
  "oklch": {
    "l": 0.33992,
    "c": 0.05893,
    "h": 98.1
  },
  "luminance": 0.03953
}

Semantic roles & 50–950 ramp

primary

#40380F

secondary

#303C7A

accent

#5DE543

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090702

muted

#7B7A78

Preview Lab

Preview with #40380F

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

Preview Lab → · Contrast checker → · Palette generator →