#BB511C#BB511C

#BB511C is a mid, vivid orange. Relative luminance 0.165; OKLCH L 56.4% C 0.151 H 43.4°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#BB511C
RGB	rgb(187, 81, 28)
HSL	hsl(20, 74%, 42%)
HSV	hsv(20, 85%, 73%)
CMYK	cmyk(0%, 56.7%, 85%, 26.7%)
CIE-LAB	lab(47.67, 40.03, 49.07)
CIE-LCH	lch(47.67, 63.33, 50.79°)
OKLab	oklab(56.39% 0.1094 0.1034)
OKLCH	oklch(56.39% 0.151 43.4)
XYZ	xyz(23.6481, 16.5367, 3.0450)
Luminance	0.1653 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB511C #1C86BB

analogous

#BB1C37 #BB511C #BBA11C

triadic

#BB511C #1CBB51 #511CBB

tetradic

#BB511C #37BB1C #1C86BB #A11CBB

square

#BB511C #37BB1C #1C86BB #A11CBB

split-complementary

#BB511C #1CBBA1 #1C37BB

monochromatic

#51230C #863A14 #BB511C #E16D34 #E99369

Accessibility & contrast

On white

4.88

#BB511C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#BB511C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB511C

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB511C	#FFFFFF	#000000	##FFFFFF
##BB511C	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F6213

Deuteranopia (green-blind)

#897A18

Tritanopia (blue-blind)

#CE3847

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #bb511c;
/* rgb */ color: rgb(187, 81, 28);
/* oklch */ color: oklch(56.4% 0.151 43.4);

Tailwind

colors: {
  custom: {
    50: '#d8855e',
    500: '#bb511c',
    950: '#000000',
  },
}

SCSS

$custom: #bb511c;
$custom-light: #d8855e;
$custom-dark: #000000;

JSON

{
  "hex": "#bb511c",
  "rgb": {
    "r": 187,
    "g": 81,
    "b": 28
  },
  "hsl": {
    "h": 20,
    "s": 73.953,
    "l": 42.157
  },
  "oklch": {
    "l": 0.56392,
    "c": 0.15056,
    "h": 43.4
  },
  "luminance": 0.16533
}

Semantic roles & 50–950 ramp

primary

#BB511C

secondary

#65ABCE

accent

#B3F137

background

#FEF8F5

surface

#FDEFE9

border

#D5CAC5

text

#160B04

muted

#847C79

Preview Lab

Preview with #BB511C

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

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