#B33F2E#B33F2E

#B33F2E is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.154 H 31.0°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B33F2E
RGB	rgb(179, 63, 46)
HSL	hsl(8, 59%, 44%)
HSV	hsv(8, 74%, 70%)
CMYK	cmyk(0%, 64.8%, 74.3%, 29.8%)
CIE-LAB	lab(43.27, 46.14, 35.37)
CIE-LCH	lch(43.27, 58.14, 37.47°)
OKLab	oklab(52.86% 0.1321 0.0795)
OKLCH	oklch(52.86% 0.154 31)
XYZ	xyz(20.8633, 13.3390, 4.0603)
Luminance	0.1334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F2E #2EA2B3

analogous

#B32E60 #B33F2E #B3822E

triadic

#B33F2E #2EB33F #3F2EB3

tetradic

#B33F2E #60B32E #2EA2B3 #822EB3

square

#B33F2E #60B32E #2EA2B3 #822EB3

split-complementary

#B33F2E #2EB382 #2E60B3

monochromatic

#521D15 #822E21 #B33F2E #D15E4D #DE8A7E

Accessibility & contrast

On white

5.73

#B33F2E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B33F2E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F2E

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F2E	#FFFFFF	#000000	##FFFFFF
##B33F2E	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F562B

Deuteranopia (green-blind)

#7C702A

Tritanopia (blue-blind)

#C5213C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33f2e;
/* rgb */ color: rgb(179, 63, 46);
/* oklch */ color: oklch(52.9% 0.154 31.0);

Tailwind

colors: {
  custom: {
    50: '#d17a68',
    500: '#b33f2e',
    950: '#000000',
  },
}

SCSS

$custom: #b33f2e;
$custom-light: #d17a68;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f2e",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 46
  },
  "hsl": {
    "h": 7.669,
    "s": 59.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.52855,
    "c": 0.15411,
    "h": 31
  },
  "luminance": 0.13336
}

Semantic roles & 50–950 ramp

primary

#B33F2E

secondary

#76BCC6

accent

#CEE246

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33F2E

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

Preview Lab → · Contrast checker → · Palette generator →