#B33D2E#B33D2E

#B33D2E is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.156 H 30.3°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#B33D2E
RGB	rgb(179, 61, 46)
HSL	hsl(7, 59%, 44%)
HSV	hsv(7, 74%, 70%)
CMYK	cmyk(0%, 65.9%, 74.3%, 29.8%)
CIE-LAB	lab(42.95, 47.01, 35.01)
CIE-LCH	lch(42.95, 58.62, 36.68°)
OKLab	oklab(52.61% 0.1348 0.0787)
OKLCH	oklch(52.61% 0.156 30.3)
XYZ	xyz(20.7546, 13.1214, 4.0241)
Luminance	0.1312 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D2E #2EA4B3

analogous

#B32E62 #B33D2E #B3802E

triadic

#B33D2E #2EB33D #3D2EB3

tetradic

#B33D2E #62B32E #2EA4B3 #802EB3

square

#B33D2E #62B32E #2EA4B3 #802EB3

split-complementary

#B33D2E #2EB380 #2E62B3

monochromatic

#521C15 #822C21 #B33D2E #D15C4D #DE887E

Accessibility & contrast

On white

5.80

#B33D2E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B33D2E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D2E

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D2E	#FFFFFF	#000000	##FFFFFF
##B33D2E	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E552C

Deuteranopia (green-blind)

#7B6F2A

Tritanopia (blue-blind)

#C51D3A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33d2e;
/* rgb */ color: rgb(179, 61, 46);
/* oklch */ color: oklch(52.6% 0.156 30.3);

Tailwind

colors: {
  custom: {
    50: '#d27967',
    500: '#b33d2e',
    950: '#000000',
  },
}

SCSS

$custom: #b33d2e;
$custom-light: #d27967;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d2e",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 46
  },
  "hsl": {
    "h": 6.767,
    "s": 59.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.52612,
    "c": 0.15606,
    "h": 30.3
  },
  "luminance": 0.13118
}

Semantic roles & 50–950 ramp

primary

#B33D2E

secondary

#76BDC6

accent

#D1E246

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33D2E

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

Preview Lab → · Contrast checker → · Palette generator →