#CB4739#CB4739

#CB4739 is a mid, vivid red. Relative luminance 0.175; OKLCH L 57.9% C 0.170 H 29.3°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#CB4739
RGB	rgb(203, 71, 57)
HSL	hsl(6, 58%, 51%)
HSV	hsv(6, 72%, 80%)
CMYK	cmyk(0%, 65%, 71.9%, 20.4%)
CIE-LAB	lab(48.89, 51.51, 36.65)
CIE-LCH	lch(48.89, 63.22, 35.43°)
OKLab	oklab(57.91% 0.1483 0.0832)
OKLCH	oklch(57.91% 0.17 29.3)
XYZ	xyz(27.6233, 17.5023, 5.7938)
Luminance	0.1750 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4739 #39BDCB

analogous

#CB3974 #CB4739 #CB9039

triadic

#CB4739 #39CB47 #4739CB

tetradic

#CB4739 #74CB39 #39BDCB #9039CB

square

#CB4739 #74CB39 #39BDCB #9039CB

split-complementary

#CB4739 #39CB90 #3974CB

monochromatic

#6D241D #9D3429 #CB4739 #D87469 #E4A19A

Accessibility & contrast

On white

4.67

#CB4739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#CB4739 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4739

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4739	#FFFFFF	#000000	##FFFFFF
##CB4739	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C6237

Deuteranopia (green-blind)

#8C7F35

Tritanopia (blue-blind)

#DF2445

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #cb4739;
/* rgb */ color: rgb(203, 71, 57);
/* oklch */ color: oklch(57.9% 0.170 29.3);

Tailwind

colors: {
  custom: {
    50: '#e38170',
    500: '#cb4739',
    950: '#000000',
  },
}

SCSS

$custom: #cb4739;
$custom-light: #e38170;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4739",
  "rgb": {
    "r": 203,
    "g": 71,
    "b": 57
  },
  "hsl": {
    "h": 5.753,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57907,
    "c": 0.1701,
    "h": 29.3
  },
  "luminance": 0.17498
}

Semantic roles & 50–950 ramp

primary

#CB4739

secondary

#90CAD0

accent

#D3E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CB4739

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

Preview Lab → · Contrast checker → · Palette generator →