#3B0703#3B0703

#3B0703 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.1% C 0.081 H 30.6°. Best body text is #FFFFFF at 17.25:1 contrast (WCAG AA passes).

Color values

HEX	#3B0703
RGB	rgb(59, 7, 3)
HSL	hsl(4, 90%, 12%)
HSV	hsv(4, 95%, 23%)
CMYK	cmyk(0%, 88.1%, 94.9%, 76.9%)
CIE-LAB	lab(9.71, 24.80, 13.93)
CIE-LCH	lch(9.71, 28.44, 29.33°)
OKLab	oklab(23.12% 0.07 0.0414)
OKLCH	oklch(23.12% 0.081 30.6)
XYZ	xyz(1.8963, 1.0886, 0.1964)
Luminance	0.0109 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B0703 #03373B

analogous

#3B031B #3B0703 #3B2303

triadic

#3B0703 #033B07 #07033B

tetradic

#3B0703 #1B3B03 #03373B #23033B

square

#3B0703 #1B3B03 #03373B #23033B

split-complementary

#3B0703 #033B23 #031B3B

monochromatic

#1D0301 #1D0301 #3B0703 #750E06 #AF1509

Accessibility & contrast

On white

17.25

#3B0703 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#3B0703 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B0703

17.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B0703	#FFFFFF	#000000	##FFFFFF
##3B0703	1.00	17.25	1.22	17.25
#FFFFFF	17.25	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171402

Deuteranopia (green-blind)

#241F02

Tritanopia (blue-blind)

#420006

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #3b0703;
/* rgb */ color: rgb(59, 7, 3);
/* oklch */ color: oklch(23.1% 0.081 30.6);

Tailwind

colors: {
  custom: {
    50: '#764c48',
    500: '#3b0703',
    950: '#000000',
  },
}

SCSS

$custom: #3b0703;
$custom-light: #764c48;
$custom-dark: #000000;

JSON

{
  "hex": "#3b0703",
  "rgb": {
    "r": 59,
    "g": 7,
    "b": 3
  },
  "hsl": {
    "h": 4.286,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.23116,
    "c": 0.08134,
    "h": 30.6
  },
  "luminance": 0.01088
}

Semantic roles & 50–950 ramp

primary

#3B0703

secondary

#1C777E

accent

#F0FF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #3B0703

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

Preview Lab → · Contrast checker → · Palette generator →