#B03023#B03023

#B03023 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.5% C 0.167 H 29.8°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#B03023
RGB	rgb(176, 48, 35)
HSL	hsl(6, 67%, 41%)
HSV	hsv(6, 80%, 69%)
CMYK	cmyk(0%, 72.7%, 80.1%, 31%)
CIE-LAB	lab(40.36, 50.79, 38.21)
CIE-LCH	lch(40.36, 63.56, 36.96°)
OKLab	oklab(50.53% 0.1447 0.0828)
OKLCH	oklch(50.53% 0.167 29.8)
XYZ	xyz(19.2671, 11.4683, 2.7889)
Luminance	0.1147 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03023 #23A3B0

analogous

#B0235D #B03023 #B07723

triadic

#B03023 #23B030 #3023B0

tetradic

#B03023 #5DB023 #23A3B0 #7723B0

square

#B03023 #5DB023 #23A3B0 #7723B0

split-complementary

#B03023 #23B077 #235DB0

monochromatic

#4A140F #7D2219 #B03023 #D84739 #E2776C

Accessibility & contrast

On white

6.38

#B03023 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#B03023 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03023

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03023	#FFFFFF	#000000	##FFFFFF
##B03023	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564D20

Deuteranopia (green-blind)

#76691D

Tritanopia (blue-blind)

#C2002E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b03023;
/* rgb */ color: rgb(176, 48, 35);
/* oklch */ color: oklch(50.5% 0.167 29.8);

Tailwind

colors: {
  custom: {
    50: '#d1715f',
    500: '#b03023',
    950: '#000000',
  },
}

SCSS

$custom: #b03023;
$custom-light: #d1715f;
$custom-dark: #000000;

JSON

{
  "hex": "#b03023",
  "rgb": {
    "r": 176,
    "g": 48,
    "b": 35
  },
  "hsl": {
    "h": 5.532,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.50534,
    "c": 0.16674,
    "h": 29.8
  },
  "luminance": 0.11465
}

Semantic roles & 50–950 ramp

primary

#B03023

secondary

#67BFC8

accent

#DAEA3E

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160805

muted

#847B79

Preview Lab

Preview with #B03023

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

Preview Lab → · Contrast checker → · Palette generator →