#BB403B#BB403B

#BB403B is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.5% C 0.159 H 26.2°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#BB403B
RGB	rgb(187, 64, 59)
HSL	hsl(2, 52%, 48%)
HSV	hsv(2, 68%, 73%)
CMYK	cmyk(0%, 65.8%, 68.4%, 26.7%)
CIE-LAB	lab(45.01, 49.13, 30.25)
CIE-LCH	lch(45.01, 57.70, 31.63°)
OKLab	oklab(54.48% 0.1431 0.0703)
OKLCH	oklch(54.48% 0.159 26.2)
XYZ	xyz(23.1187, 14.5506, 5.7280)
Luminance	0.1455 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB403B #3BB6BB

analogous

#BB3B76 #BB403B #BB803B

triadic

#BB403B #3BBB40 #403BBB

tetradic

#BB403B #76BB3B #3BB6BB #803BBB

square

#BB403B #76BB3B #3BB6BB #803BBB

split-complementary

#BB403B #3BBB80 #3B76BB

monochromatic

#5E201E #8C302C #BB403B #CE6965 #DD9693

Accessibility & contrast

On white

5.37

#BB403B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#BB403B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB403B

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB403B	#FFFFFF	#000000	##FFFFFF
##BB403B	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615A3A

Deuteranopia (green-blind)

#807437

Tritanopia (blue-blind)

#CD2140

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #bb403b;
/* rgb */ color: rgb(187, 64, 59);
/* oklch */ color: oklch(54.5% 0.159 26.2);

Tailwind

colors: {
  custom: {
    50: '#d77b71',
    500: '#bb403b',
    950: '#000000',
  },
}

SCSS

$custom: #bb403b;
$custom-light: #d77b71;
$custom-dark: #000000;

JSON

{
  "hex": "#bb403b",
  "rgb": {
    "r": 187,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 2.344,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.54484,
    "c": 0.15948,
    "h": 26.2
  },
  "luminance": 0.14547
}

Semantic roles & 50–950 ramp

primary

#BB403B

secondary

#8AC6C8

accent

#D6DB4C

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #BB403B

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

Preview Lab → · Contrast checker → · Palette generator →