#B03440#B03440

#B03440 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.4% C 0.160 H 19.5°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#B03440
RGB	rgb(176, 52, 64)
HSL	hsl(354, 54%, 45%)
HSV	hsv(354, 70%, 69%)
CMYK	cmyk(0%, 70.5%, 63.6%, 31%)
CIE-LAB	lab(41.31, 50.67, 22.20)
CIE-LCH	lch(41.31, 55.31, 23.66°)
OKLab	oklab(51.37% 0.1504 0.0533)
OKLCH	oklch(51.37% 0.16 19.5)
XYZ	xyz(20.0599, 12.0591, 6.1208)
Luminance	0.1206 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03440 #34B0A4

analogous

#B0347E #B03440 #B06634

triadic

#B03440 #40B034 #3440B0

tetradic

#B03440 #7EB034 #34B0A4 #6634B0

square

#B03440 #7EB034 #34B0A4 #6634B0

split-complementary

#B03440 #34B066 #347EB0

monochromatic

#52181E #81262F #B03440 #CD5560 #DB848C

Accessibility & contrast

On white

6.16

#B03440 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B03440 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03440

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03440	#FFFFFF	#000000	##FFFFFF
##B03440	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555140

Deuteranopia (green-blind)

#756B3D

Tritanopia (blue-blind)

#C11139

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03440;
/* rgb */ color: rgb(176, 52, 64);
/* oklch */ color: oklch(51.4% 0.160 19.5);

Tailwind

colors: {
  custom: {
    50: '#ce7474',
    500: '#b03440',
    950: '#000000',
  },
}

SCSS

$custom: #b03440;
$custom-light: #ce7474;
$custom-dark: #000000;

JSON

{
  "hex": "#b03440",
  "rgb": {
    "r": 176,
    "g": 52,
    "b": 64
  },
  "hsl": {
    "h": 354.194,
    "s": 54.386,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51372,
    "c": 0.15954,
    "h": 19.5
  },
  "luminance": 0.12056
}

Semantic roles & 50–950 ramp

primary

#B03440

secondary

#7CC4BD

accent

#DECF4A

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B03440

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

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