#40381A#40381A

#40381A is a dark, muted yellow. Relative luminance 0.040; OKLCH L 34.1% C 0.047 H 94.8°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#40381A
RGB	rgb(64, 56, 26)
HSL	hsl(47, 42%, 18%)
HSV	hsv(47, 59%, 25%)
CMYK	cmyk(0%, 12.5%, 59.4%, 74.9%)
CIE-LAB	lab(23.65, -1.21, 19.87)
CIE-LCH	lch(23.65, 19.90, 93.49°)
OKLab	oklab(34.14% -0.0039 0.0471)
OKLCH	oklch(34.14% 0.047 94.8)
XYZ	xyz(3.7151, 3.9931, 1.5521)
Luminance	0.0399 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40381A #1A2240

analogous

#40251A #40381A #35401A

triadic

#40381A #1A4038 #381A40

tetradic

#40381A #1A4025 #1A2240 #401A35

square

#40381A #1A4025 #1A2240 #401A35

split-complementary

#40381A #1A3540 #251A40

monochromatic

#161309 #161309 #40381A #6C5E2C #97843D

Accessibility & contrast

On white

11.68

#40381A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#40381A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40381A

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40381A	#FFFFFF	#000000	##FFFFFF
##40381A	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3717

Deuteranopia (green-blind)

#40391B

Tritanopia (blue-blind)

#453431

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #40381a;
/* rgb */ color: rgb(64, 56, 26);
/* oklch */ color: oklch(34.1% 0.047 94.8);

Tailwind

colors: {
  custom: {
    50: '#766e57',
    500: '#40381a',
    950: '#000000',
  },
}

SCSS

$custom: #40381a;
$custom-light: #766e57;
$custom-dark: #000000;

JSON

{
  "hex": "#40381a",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 26
  },
  "hsl": {
    "h": 47.368,
    "s": 42.222,
    "l": 17.647
  },
  "oklch": {
    "l": 0.3414,
    "c": 0.04724,
    "h": 94.8
  },
  "luminance": 0.03993
}

Semantic roles & 50–950 ramp

primary

#40381A

secondary

#404B76

accent

#70D256

background

#F7F6F5

surface

#EDEBE9

border

#C8C6C5

text

#080703

muted

#7B7A78

Preview Lab

Preview with #40381A

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

Preview Lab → · Contrast checker → · Palette generator →