#B3383F#B3383F

#B3383F is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.159 H 21.4°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B3383F
RGB	rgb(179, 56, 63)
HSL	hsl(357, 52%, 46%)
HSV	hsv(357, 69%, 70%)
CMYK	cmyk(0%, 68.7%, 64.8%, 29.8%)
CIE-LAB	lab(42.42, 50.00, 24.34)
CIE-LCH	lch(42.42, 55.61, 25.96°)
OKLab	oklab(52.3% 0.1477 0.058)
OKLCH	oklch(52.3% 0.159 21.4)
XYZ	xyz(20.9039, 12.7739, 6.0665)
Luminance	0.1277 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3383F #38B3AC

analogous

#B3387C #B3383F #B36E38

triadic

#B3383F #3FB338 #383FB3

tetradic

#B3383F #7CB338 #38B3AC #6E38B3

square

#B3383F #7CB338 #38B3AC #6E38B3

split-complementary

#B3383F #38B36E #387CB3

monochromatic

#561B1E #84292F #B3383F #CC5C63 #DB8B8F

Accessibility & contrast

On white

5.91

#B3383F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B3383F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3383F

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3383F	#FFFFFF	#000000	##FFFFFF
##B3383F	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59543E

Deuteranopia (green-blind)

#786E3C

Tritanopia (blue-blind)

#C4173C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b3383f;
/* rgb */ color: rgb(179, 56, 63);
/* oklch */ color: oklch(52.3% 0.159 21.4);

Tailwind

colors: {
  custom: {
    50: '#d17674',
    500: '#b3383f',
    950: '#000000',
  },
}

SCSS

$custom: #b3383f;
$custom-light: #d17674;
$custom-dark: #000000;

JSON

{
  "hex": "#b3383f",
  "rgb": {
    "r": 179,
    "g": 56,
    "b": 63
  },
  "hsl": {
    "h": 356.585,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52297,
    "c": 0.15864,
    "h": 21.4
  },
  "luminance": 0.12771
}

Semantic roles & 50–950 ramp

primary

#B3383F

secondary

#82C5C1

accent

#DCD44C

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B3383F

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

Preview Lab → · Contrast checker → · Palette generator →