#381003#381003

#381003 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.7% C 0.068 H 39.4°. Best body text is #FFFFFF at 16.89:1 contrast (WCAG AA passes).

Color values

HEX	#381003
RGB	rgb(56, 16, 3)
HSL	hsl(15, 90%, 12%)
HSV	hsv(15, 95%, 22%)
CMYK	cmyk(0%, 71.4%, 94.6%, 78%)
CIE-LAB	lab(10.69, 19.03, 15.22)
CIE-LCH	lch(10.69, 24.37, 38.64°)
OKLab	oklab(23.73% 0.0526 0.0432)
OKLCH	oklch(23.73% 0.068 39.4)
XYZ	xyz(1.8328, 1.2182, 0.2248)
Luminance	0.0122 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381003 #032B38

analogous

#380311 #381003 #382B03

triadic

#381003 #033810 #100338

tetradic

#381003 #113803 #032B38 #2B0338

square

#381003 #113803 #032B38 #2B0338

split-complementary

#381003 #03382B #031138

monochromatic

#1D0802 #1D0802 #381003 #722106 #AC3109

Accessibility & contrast

On white

16.89

#381003 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#381003 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381003

16.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381003	#FFFFFF	#000000	##FFFFFF
##381003	1.00	16.89	1.24	16.89
#FFFFFF	16.89	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1702

Deuteranopia (green-blind)

#252002

Tritanopia (blue-blind)

#3F060D

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #381003;
/* rgb */ color: rgb(56, 16, 3);
/* oklch */ color: oklch(23.7% 0.068 39.4);

Tailwind

colors: {
  custom: {
    50: '#725048',
    500: '#381003',
    950: '#000000',
  },
}

SCSS

$custom: #381003;
$custom-light: #725048;
$custom-dark: #000000;

JSON

{
  "hex": "#381003",
  "rgb": {
    "r": 56,
    "g": 16,
    "b": 3
  },
  "hsl": {
    "h": 14.717,
    "s": 89.831,
    "l": 11.569
  },
  "oklch": {
    "l": 0.23728,
    "c": 0.06804,
    "h": 39.4
  },
  "luminance": 0.01218
}

Semantic roles & 50–950 ramp

primary

#381003

secondary

#1C647B

accent

#CAFF29

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#080200

muted

#7B7877

Preview Lab

Preview with #381003

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

Preview Lab → · Contrast checker → · Palette generator →