#CA3F31#CA3F31

#CA3F31 is a mid, vivid red. Relative luminance 0.163; OKLCH L 56.7% C 0.178 H 29.4°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#CA3F31
RGB	rgb(202, 63, 49)
HSL	hsl(5, 61%, 49%)
HSV	hsv(5, 76%, 79%)
CMYK	cmyk(0%, 68.8%, 75.7%, 20.8%)
CIE-LAB	lab(47.41, 54.09, 39.41)
CIE-LCH	lch(47.41, 66.93, 36.08°)
OKLab	oklab(56.74% 0.1549 0.0875)
OKLCH	oklch(56.74% 0.178 29.4)
XYZ	xyz(26.6920, 16.3373, 4.6531)
Luminance	0.1633 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3F31 #31BCCA

analogous

#CA3170 #CA3F31 #CA8C31

triadic

#CA3F31 #31CA3F #3F31CA

tetradic

#CA3F31 #70CA31 #31BCCA #8C31CA

square

#CA3F31 #70CA31 #31BCCA #8C31CA

split-complementary

#CA3F31 #31CA8C #3170CA

monochromatic

#672019 #993025 #CA3F31 #D86B60 #E49991

Accessibility & contrast

On white

4.92

#CA3F31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#CA3F31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3F31

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3F31	#FFFFFF	#000000	##FFFFFF
##CA3F31	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#675D2E

Deuteranopia (green-blind)

#8A7C2C

Tritanopia (blue-blind)

#DE0E3D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #ca3f31;
/* rgb */ color: rgb(202, 63, 49);
/* oklch */ color: oklch(56.7% 0.178 29.4);

Tailwind

colors: {
  custom: {
    50: '#e37c6a',
    500: '#ca3f31',
    950: '#000000',
  },
}

SCSS

$custom: #ca3f31;
$custom-light: #e37c6a;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3f31",
  "rgb": {
    "r": 202,
    "g": 63,
    "b": 49
  },
  "hsl": {
    "h": 5.49,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.5674,
    "c": 0.17793,
    "h": 29.4
  },
  "luminance": 0.16333
}

Semantic roles & 50–950 ramp

primary

#CA3F31

secondary

#88C9CF

accent

#D5E444

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #CA3F31

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

Preview Lab → · Contrast checker → · Palette generator →