#B03E2B#B03E2B

#B03E2B is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.2% C 0.152 H 31.9°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#B03E2B
RGB	rgb(176, 62, 43)
HSL	hsl(9, 61%, 43%)
HSV	hsv(9, 76%, 69%)
CMYK	cmyk(0%, 64.8%, 75.6%, 31%)
CIE-LAB	lab(42.54, 45.39, 36.10)
CIE-LCH	lch(42.54, 57.99, 38.49°)
OKLab	oklab(52.2% 0.1294 0.0805)
OKLCH	oklch(52.2% 0.152 31.9)
XYZ	xyz(20.0653, 12.8526, 3.7093)
Luminance	0.1285 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03E2B #2B9DB0

analogous

#B02B5B #B03E2B #B0802B

triadic

#B03E2B #2BB03E #3E2BB0

tetradic

#B03E2B #5BB02B #2B9DB0 #802BB0

square

#B03E2B #5BB02B #2B9DB0 #802BB0

split-complementary

#B03E2B #2BB080 #2B5BB0

monochromatic

#4E1B13 #7F2D1F #B03E2B #D25A46 #DE8678

Accessibility & contrast

On white

5.88

#B03E2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B03E2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03E2B

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03E2B	#FFFFFF	#000000	##FFFFFF
##B03E2B	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5528

Deuteranopia (green-blind)

#7A6E27

Tritanopia (blue-blind)

#C2203A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b03e2b;
/* rgb */ color: rgb(176, 62, 43);
/* oklch */ color: oklch(52.2% 0.152 31.9);

Tailwind

colors: {
  custom: {
    50: '#cf7965',
    500: '#b03e2b',
    950: '#000000',
  },
}

SCSS

$custom: #b03e2b;
$custom-light: #cf7965;
$custom-dark: #000000;

JSON

{
  "hex": "#b03e2b",
  "rgb": {
    "r": 176,
    "g": 62,
    "b": 43
  },
  "hsl": {
    "h": 8.571,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.52196,
    "c": 0.15243,
    "h": 31.9
  },
  "luminance": 0.1285
}

Semantic roles & 50–950 ramp

primary

#B03E2B

secondary

#71BAC6

accent

#CDE444

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B03E2B

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

Preview Lab → · Contrast checker → · Palette generator →