#390A0B#390A0B

#390A0B is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.2% C 0.074 H 23.9°. Best body text is #FFFFFF at 17.18:1 contrast (WCAG AA passes).

Color values

HEX	#390A0B
RGB	rgb(57, 10, 11)
HSL	hsl(359, 70%, 13%)
HSV	hsv(359, 82%, 22%)
CMYK	cmyk(0%, 82.5%, 80.7%, 77.6%)
CIE-LAB	lab(9.89, 23.07, 10.85)
CIE-LCH	lch(9.89, 25.50, 25.18°)
OKLab	oklab(23.21% 0.0675 0.03)
OKLCH	oklch(23.21% 0.074 23.9)
XYZ	xyz(1.8565, 1.1114, 0.4333)
Luminance	0.0111 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#390A0B #0A3938

analogous

#390A22 #390A0B #39200A

triadic

#390A0B #0B390A #0A0B39

tetradic

#390A0B #22390A #0A3938 #200A39

square

#390A0B #22390A #0A3938 #200A39

split-complementary

#390A0B #0A3920 #0A2239

monochromatic

#1A0505 #1A0505 #390A0B #6D1315 #A11C1F

Accessibility & contrast

On white

17.18

#390A0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#390A0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #390A0B

17.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##390A0B	#FFFFFF	#000000	##FFFFFF
##390A0B	1.00	17.18	1.22	17.18
#FFFFFF	17.18	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17150B

Deuteranopia (green-blind)

#231F0A

Tritanopia (blue-blind)

#40000B

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #390a0b;
/* rgb */ color: rgb(57, 10, 11);
/* oklch */ color: oklch(23.2% 0.074 23.9);

Tailwind

colors: {
  custom: {
    50: '#744d4b',
    500: '#390a0b',
    950: '#000000',
  },
}

SCSS

$custom: #390a0b;
$custom-light: #744d4b;
$custom-dark: #000000;

JSON

{
  "hex": "#390a0b",
  "rgb": {
    "r": 57,
    "g": 10,
    "b": 11
  },
  "hsl": {
    "h": 358.723,
    "s": 70.149,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23207,
    "c": 0.0738,
    "h": 23.9
  },
  "luminance": 0.01111
}

Semantic roles & 50–950 ramp

primary

#390A0B

secondary

#287675

accent

#EDE93B

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #390A0B

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

Preview Lab → · Contrast checker → · Palette generator →