#380303#380303

#380303 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.9% C 0.083 H 27.6°. Best body text is #FFFFFF at 17.76:1 contrast (WCAG AA passes).

Color values

HEX	#380303
RGB	rgb(56, 3, 3)
HSL	hsl(0, 90%, 12%)
HSV	hsv(0, 95%, 22%)
CMYK	cmyk(0%, 94.6%, 94.6%, 78%)
CIE-LAB	lab(8.24, 25.76, 11.72)
CIE-LCH	lch(8.24, 28.30, 24.48°)
OKLab	oklab(21.9% 0.0734 0.0383)
OKLCH	oklch(21.9% 0.083 27.6)
XYZ	xyz(1.6801, 0.9127, 0.1738)
Luminance	0.0091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#380303 #033838

analogous

#38031E #380303 #381E03

triadic

#380303 #033803 #030338

tetradic

#380303 #1E3803 #033838 #1E0338

square

#380303 #1E3803 #033838 #1E0338

split-complementary

#380303 #03381E #031E38

monochromatic

#1D0202 #1D0202 #380303 #720606 #AC0909

Accessibility & contrast

On white

17.76

#380303 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#380303 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #380303

17.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##380303	#FFFFFF	#000000	##FFFFFF
##380303	1.00	17.76	1.18	17.76
#FFFFFF	17.76	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141003

Deuteranopia (green-blind)

#211C01

Tritanopia (blue-blind)

#3F0004

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #380303;
/* rgb */ color: rgb(56, 3, 3);
/* oklch */ color: oklch(21.9% 0.083 27.6);

Tailwind

colors: {
  custom: {
    50: '#734948',
    500: '#380303',
    950: '#000000',
  },
}

SCSS

$custom: #380303;
$custom-light: #734948;
$custom-dark: #000000;

JSON

{
  "hex": "#380303",
  "rgb": {
    "r": 56,
    "g": 3,
    "b": 3
  },
  "hsl": {
    "h": 0,
    "s": 89.831,
    "l": 11.569
  },
  "oklch": {
    "l": 0.21895,
    "c": 0.08278,
    "h": 27.6
  },
  "luminance": 0.00912
}

Semantic roles & 50–950 ramp

primary

#380303

secondary

#1C7B7B

accent

#FFFF29

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #380303

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

Preview Lab → · Contrast checker → · Palette generator →