#3A0703#3A0703

#3A0703 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 22.9% C 0.080 H 30.7°. Best body text is #FFFFFF at 17.33:1 contrast (WCAG AA passes).

Color values

HEX	#3A0703
RGB	rgb(58, 7, 3)
HSL	hsl(4, 90%, 12%)
HSV	hsv(4, 95%, 23%)
CMYK	cmyk(0%, 87.9%, 94.8%, 77.3%)
CIE-LAB	lab(9.47, 24.42, 13.55)
CIE-LCH	lch(9.47, 27.93, 29.04°)
OKLab	oklab(22.89% 0.069 0.0409)
OKLCH	oklch(22.89% 0.08 30.7)
XYZ	xyz(1.8376, 1.0584, 0.1937)
Luminance	0.0106 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A0703 #03363A

analogous

#3A031B #3A0703 #3A2303

triadic

#3A0703 #033A07 #07033A

tetradic

#3A0703 #1B3A03 #03363A #23033A

square

#3A0703 #1B3A03 #03363A #23033A

split-complementary

#3A0703 #033A23 #031B3A

monochromatic

#1D0402 #1D0402 #3A0703 #740E06 #AE1509

Accessibility & contrast

On white

17.33

#3A0703 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#3A0703 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A0703

17.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A0703	#FFFFFF	#000000	##FFFFFF
##3A0703	1.00	17.33	1.21	17.33
#FFFFFF	17.33	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171302

Deuteranopia (green-blind)

#231E02

Tritanopia (blue-blind)

#410006

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #3a0703;
/* rgb */ color: rgb(58, 7, 3);
/* oklch */ color: oklch(22.9% 0.080 30.7);

Tailwind

colors: {
  custom: {
    50: '#754b48',
    500: '#3a0703',
    950: '#000000',
  },
}

SCSS

$custom: #3a0703;
$custom-light: #754b48;
$custom-dark: #000000;

JSON

{
  "hex": "#3a0703",
  "rgb": {
    "r": 58,
    "g": 7,
    "b": 3
  },
  "hsl": {
    "h": 4.364,
    "s": 90.164,
    "l": 11.961
  },
  "oklch": {
    "l": 0.22894,
    "c": 0.08017,
    "h": 30.7
  },
  "luminance": 0.01058
}

Semantic roles & 50–950 ramp

primary

#3A0703

secondary

#1C767D

accent

#EFFF29

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #3A0703

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

Preview Lab → · Contrast checker → · Palette generator →