#CA3757#CA3757

#CA3757 is a mid, vivid red. Relative luminance 0.160; OKLCH L 56.6% C 0.183 H 12.9°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#CA3757
RGB	rgb(202, 55, 87)
HSL	hsl(347, 58%, 50%)
HSV	hsv(347, 73%, 79%)
CMYK	cmyk(0%, 72.8%, 56.9%, 20.8%)
CIE-LAB	lab(46.95, 59.15, 16.37)
CIE-LCH	lch(46.95, 61.38, 15.47°)
OKLab	oklab(56.59% 0.1784 0.0408)
OKLCH	oklch(56.59% 0.183 12.9)
XYZ	xyz(27.4463, 15.9809, 10.6544)
Luminance	0.1598 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3757 #37CAAA

analogous

#CA37A0 #CA3757 #CA6037

triadic

#CA3757 #57CA37 #3757CA

tetradic

#CA3757 #A0CA37 #37CAAA #6037CA

square

#CA3757 #A0CA37 #37CAAA #6037CA

split-complementary

#CA3757 #37CA60 #37A0CA

monochromatic

#6A1C2D #9B2942 #CA3757 #D76780 #E498A8

Accessibility & contrast

On white

5.01

#CA3757 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#CA3757 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3757

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3757	#FFFFFF	#000000	##FFFFFF
##CA3757	1.00	5.01	4.20	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5C57

Deuteranopia (green-blind)

#837A53

Tritanopia (blue-blind)

#DD0B44

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #ca3757;
/* rgb */ color: rgb(202, 55, 87);
/* oklch */ color: oklch(56.6% 0.183 12.9);

Tailwind

colors: {
  custom: {
    50: '#e17986',
    500: '#ca3757',
    950: '#000000',
  },
}

SCSS

$custom: #ca3757;
$custom-light: #e17986;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3757",
  "rgb": {
    "r": 202,
    "g": 55,
    "b": 87
  },
  "hsl": {
    "h": 346.939,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5659,
    "c": 0.18304,
    "h": 12.9
  },
  "luminance": 0.15977
}

Semantic roles & 50–950 ramp

primary

#CA3757

secondary

#8ECFC1

accent

#E1C046

background

#FEF7F8

surface

#FDEEEF

border

#D5C9CA

text

#170A0B

muted

#857C7C

Preview Lab

Preview with #CA3757

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

Preview Lab → · Contrast checker → · Palette generator →