#CA3F21#CA3F21

#CA3F21 is a mid, vivid red. Relative luminance 0.162; OKLCH L 56.6% C 0.181 H 33.7°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#CA3F21
RGB	rgb(202, 63, 33)
HSL	hsl(11, 72%, 46%)
HSV	hsv(11, 84%, 79%)
CMYK	cmyk(0%, 68.8%, 83.7%, 20.8%)
CIE-LAB	lab(47.27, 53.57, 47.50)
CIE-LCH	lch(47.27, 71.59, 41.56°)
OKLab	oklab(56.58% 0.1504 0.1001)
OKLCH	oklch(56.58% 0.181 33.7)
XYZ	xyz(26.4123, 16.2254, 3.1796)
Luminance	0.1622 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3F21 #21ACCA

analogous

#CA2157 #CA3F21 #CA9321

triadic

#CA3F21 #21CA3F #3F21CA

tetradic

#CA3F21 #57CA21 #21ACCA #9321CA

square

#CA3F21 #57CA21 #21ACCA #9321CA

split-complementary

#CA3F21 #21CA93 #2157CA

monochromatic

#611E10 #952F18 #CA3F21 #E16347 #EA8F7C

Accessibility & contrast

On white

4.95

#CA3F21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#CA3F21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3F21

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3F21	#FFFFFF	#000000	##FFFFFF
##CA3F21	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685C1C

Deuteranopia (green-blind)

#8B7B19

Tritanopia (blue-blind)

#DF073A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #ca3f21;
/* rgb */ color: rgb(202, 63, 33);
/* oklch */ color: oklch(56.6% 0.181 33.7);

Tailwind

colors: {
  custom: {
    50: '#e47c60',
    500: '#ca3f21',
    950: '#000000',
  },
}

SCSS

$custom: #ca3f21;
$custom-light: #e47c60;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3f21",
  "rgb": {
    "r": 202,
    "g": 63,
    "b": 33
  },
  "hsl": {
    "h": 10.651,
    "s": 71.915,
    "l": 46.078
  },
  "oklch": {
    "l": 0.56585,
    "c": 0.18064,
    "h": 33.7
  },
  "luminance": 0.16221
}

Semantic roles & 50–950 ramp

primary

#CA3F21

secondary

#75C1D2

accent

#CEEF39

background

#FFF7F5

surface

#FFEEE9

border

#D7C9C5

text

#180A05

muted

#867C79

Preview Lab

Preview with #CA3F21

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

Preview Lab → · Contrast checker → · Palette generator →