#B3621B#B3621B

#B3621B is a mid, vivid orange. Relative luminance 0.184; OKLCH L 57.9% C 0.131 H 55.8°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#B3621B
RGB	rgb(179, 98, 27)
HSL	hsl(28, 74%, 40%)
HSV	hsv(28, 85%, 70%)
CMYK	cmyk(0%, 45.3%, 84.9%, 29.8%)
CIE-LAB	lab(49.98, 27.90, 50.97)
CIE-LCH	lch(49.98, 58.10, 61.31°)
OKLab	oklab(57.91% 0.0734 0.1081)
OKLCH	oklch(57.91% 0.131 55.8)
XYZ	xyz(23.1581, 18.4009, 3.3689)
Luminance	0.1840 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3621B #1B6CB3

analogous

#B31B20 #B3621B #B3AE1B

triadic

#B3621B #1BB362 #621BB3

tetradic

#B3621B #20B31B #1B6CB3 #AE1BB3

square

#B3621B #20B31B #1B6CB3 #AE1BB3

split-complementary

#B3621B #1BB3AE #1B20B3

monochromatic

#49280B #7E4513 #B3621B #DF802C #E7A061

Accessibility & contrast

On white

4.49

#B3621B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#B3621B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B3621B

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3621B	#FFFFFF	#000000	##000000
##B3621B	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A6C0D

Deuteranopia (green-blind)

#8D7E1A

Tritanopia (blue-blind)

#C45055

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #b3621b;
/* rgb */ color: rgb(179, 98, 27);
/* oklch */ color: oklch(57.9% 0.131 55.8);

Tailwind

colors: {
  custom: {
    50: '#d18f5f',
    500: '#b3621b',
    950: '#000000',
  },
}

SCSS

$custom: #b3621b;
$custom-light: #d18f5f;
$custom-dark: #000000;

JSON

{
  "hex": "#b3621b",
  "rgb": {
    "r": 179,
    "g": 98,
    "b": 27
  },
  "hsl": {
    "h": 28.026,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.57911,
    "c": 0.13071,
    "h": 55.8
  },
  "luminance": 0.18398
}

Semantic roles & 50–950 ramp

primary

#B3621B

secondary

#5E99CC

accent

#9AF037

background

#FDF8F5

surface

#FBF0E9

border

#D4CBC5

text

#150C05

muted

#837D79

Preview Lab

Preview with #B3621B

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

Preview Lab → · Contrast checker → · Palette generator →