#BB3021#BB3021

#BB3021 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.5% C 0.178 H 30.2°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#BB3021
RGB	rgb(187, 48, 33)
HSL	hsl(6, 70%, 43%)
HSV	hsv(6, 82%, 73%)
CMYK	cmyk(0%, 74.3%, 82.4%, 26.7%)
CIE-LAB	lab(42.45, 54.26, 42.03)
CIE-LCH	lch(42.45, 68.64, 37.76°)
OKLab	oklab(52.47% 0.154 0.0895)
OKLCH	oklch(52.47% 0.178 30.2)
XYZ	xyz(21.8276, 12.7919, 2.7583)
Luminance	0.1279 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3021 #21ACBB

analogous

#BB215F #BB3021 #BB7D21

triadic

#BB3021 #21BB30 #3021BB

tetradic

#BB3021 #5FBB21 #21ACBB #7D21BB

square

#BB3021 #5FBB21 #21ACBB #7D21BB

split-complementary

#BB3021 #21BB7D #215FBB

monochromatic

#53150F #872318 #BB3021 #DD4C3D #E67C71

Accessibility & contrast

On white

5.90

#BB3021 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#BB3021 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3021

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3021	#FFFFFF	#000000	##FFFFFF
##BB3021	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B511E

Deuteranopia (green-blind)

#7D6F1A

Tritanopia (blue-blind)

#CE002E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #bb3021;
/* rgb */ color: rgb(187, 48, 33);
/* oklch */ color: oklch(52.5% 0.178 30.2);

Tailwind

colors: {
  custom: {
    50: '#d9735e',
    500: '#bb3021',
    950: '#000000',
  },
}

SCSS

$custom: #bb3021;
$custom-light: #d9735e;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3021",
  "rgb": {
    "r": 187,
    "g": 48,
    "b": 33
  },
  "hsl": {
    "h": 5.844,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52469,
    "c": 0.1781,
    "h": 30.2
  },
  "luminance": 0.12789
}

Semantic roles & 50–950 ramp

primary

#BB3021

secondary

#6BC3CC

accent

#DBED3B

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#170904

muted

#857B79

Preview Lab

Preview with #BB3021

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

Preview Lab → · Contrast checker → · Palette generator →