#40310B#40310B

#40310B is a dark, muted orange. Relative luminance 0.033; OKLCH L 32.2% C 0.057 H 86.5°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#40310B
RGB	rgb(64, 49, 11)
HSL	hsl(43, 71%, 15%)
HSV	hsv(43, 83%, 25%)
CMYK	cmyk(0%, 23.4%, 82.8%, 74.9%)
CIE-LAB	lab(21.25, 2.12, 25.43)
CIE-LCH	lch(21.25, 25.52, 85.24°)
OKLab	oklab(32.19% 0.0035 0.0568)
OKLCH	oklch(32.19% 0.057 86.5)
XYZ	xyz(3.2733, 3.3110, 0.7832)
Luminance	0.0331 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40310B #0B1A40

analogous

#40170B #40310B #35400B

triadic

#40310B #0B4031 #310B40

tetradic

#40310B #0B4017 #0B1A40 #400B35

square

#40310B #0B4017 #0B1A40 #400B35

split-complementary

#40310B #0B3540 #170B40

monochromatic

#1A1404 #1A1404 #40310B #745914 #A8811D

Accessibility & contrast

On white

12.63

#40310B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#40310B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40310B

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40310B	#FFFFFF	#000000	##FFFFFF
##40310B	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383106

Deuteranopia (green-blind)

#3C350D

Tritanopia (blue-blind)

#462C29

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #40310b;
/* rgb */ color: rgb(64, 49, 11);
/* oklch */ color: oklch(32.2% 0.057 86.5);

Tailwind

colors: {
  custom: {
    50: '#77684d',
    500: '#40310b',
    950: '#000000',
  },
}

SCSS

$custom: #40310b;
$custom-light: #77684d;
$custom-dark: #000000;

JSON

{
  "hex": "#40310b",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 11
  },
  "hsl": {
    "h": 43.019,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.32191,
    "c": 0.05695,
    "h": 86.5
  },
  "luminance": 0.03311
}

Semantic roles & 50–950 ramp

primary

#40310B

secondary

#2A417D

accent

#6DED3A

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090601

muted

#7B7A77

Preview Lab

Preview with #40310B

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

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