#B33F2D#B33F2D

#B33F2D is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.8% C 0.154 H 31.4°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B33F2D
RGB	rgb(179, 63, 45)
HSL	hsl(8, 60%, 44%)
HSV	hsv(8, 75%, 70%)
CMYK	cmyk(0%, 64.8%, 74.9%, 29.8%)
CIE-LAB	lab(43.26, 46.10, 35.92)
CIE-LCH	lch(43.26, 58.44, 37.93°)
OKLab	oklab(52.84% 0.1317 0.0804)
OKLCH	oklch(52.84% 0.154 31.4)
XYZ	xyz(20.8438, 13.3312, 3.9577)
Luminance	0.1333 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F2D #2DA1B3

analogous

#B32D5E #B33F2D #B3822D

triadic

#B33F2D #2DB33F #3F2DB3

tetradic

#B33F2D #5EB32D #2DA1B3 #822DB3

square

#B33F2D #5EB32D #2DA1B3 #822DB3

split-complementary

#B33F2D #2DB382 #2D5EB3

monochromatic

#511D14 #822E21 #B33F2D #D25D4B #DE897C

Accessibility & contrast

On white

5.73

#B33F2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B33F2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F2D

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F2D	#FFFFFF	#000000	##FFFFFF
##B33F2D	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)

#5F562A

Deuteranopia (green-blind)

#7C7029

Tritanopia (blue-blind)

#C5203C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33f2d;
/* rgb */ color: rgb(179, 63, 45);
/* oklch */ color: oklch(52.8% 0.154 31.4);

Tailwind

colors: {
  custom: {
    50: '#d27a67',
    500: '#b33f2d',
    950: '#000000',
  },
}

SCSS

$custom: #b33f2d;
$custom-light: #d27a67;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f2d",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 45
  },
  "hsl": {
    "h": 8.06,
    "s": 59.821,
    "l": 43.922
  },
  "oklch": {
    "l": 0.52843,
    "c": 0.15432,
    "h": 31.4
  },
  "luminance": 0.13328
}

Semantic roles & 50–950 ramp

primary

#B33F2D

secondary

#75BCC7

accent

#CEE345

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33F2D

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

Preview Lab → · Contrast checker → · Palette generator →