#39100D#39100D

#39100D is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.1% C 0.066 H 27.3°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#39100D
RGB	rgb(57, 16, 13)
HSL	hsl(4, 63%, 14%)
HSV	hsv(4, 77%, 22%)
CMYK	cmyk(0%, 71.9%, 77.2%, 77.6%)
CIE-LAB	lab(11.06, 20.12, 11.59)
CIE-LCH	lch(11.06, 23.22, 29.94°)
OKLab	oklab(24.1% 0.0586 0.0303)
OKLCH	oklch(24.1% 0.066 27.3)
XYZ	xyz(1.9455, 1.2698, 0.5233)
Luminance	0.0127 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39100D #0D3639

analogous

#390D20 #39100D #39260D

triadic

#39100D #0D3910 #100D39

tetradic

#39100D #20390D #0D3639 #260D39

square

#39100D #20390D #0D3639 #260D39

split-complementary

#39100D #0D3926 #0D2039

monochromatic

#190706 #190706 #39100D #6B1E18 #9D2C24

Accessibility & contrast

On white

16.75

#39100D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#39100D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39100D

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39100D	#FFFFFF	#000000	##FFFFFF
##39100D	1.00	16.75	1.25	16.75
#FFFFFF	16.75	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B180C

Deuteranopia (green-blind)

#25210C

Tritanopia (blue-blind)

#3F0710

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #39100d;
/* rgb */ color: rgb(57, 16, 13);
/* oklch */ color: oklch(24.1% 0.066 27.3);

Tailwind

colors: {
  custom: {
    50: '#73504c',
    500: '#39100d',
    950: '#000000',
  },
}

SCSS

$custom: #39100d;
$custom-light: #73504c;
$custom-dark: #000000;

JSON

{
  "hex": "#39100d",
  "rgb": {
    "r": 57,
    "g": 16,
    "b": 13
  },
  "hsl": {
    "h": 4.091,
    "s": 62.857,
    "l": 13.725
  },
  "oklch": {
    "l": 0.241,
    "c": 0.06598,
    "h": 27.3
  },
  "luminance": 0.01269
}

Semantic roles & 50–950 ramp

primary

#39100D

secondary

#2D7074

accent

#DBE642

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #39100D

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

Preview Lab → · Contrast checker → · Palette generator →