#CA3E21#CA3E21

#CA3E21 is a mid, vivid red. Relative luminance 0.161; OKLCH L 56.5% C 0.181 H 33.4°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#CA3E21
RGB	rgb(202, 62, 33)
HSL	hsl(10, 72%, 46%)
HSV	hsv(10, 84%, 79%)
CMYK	cmyk(0%, 69.3%, 83.7%, 20.8%)
CIE-LAB	lab(47.13, 53.96, 47.37)
CIE-LCH	lch(47.13, 71.80, 41.28°)
OKLab	oklab(56.48% 0.1516 0.0998)
OKLCH	oklch(56.48% 0.181 33.4)
XYZ	xyz(26.3574, 16.1156, 3.1613)
Luminance	0.1611 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3E21 #21ADCA

analogous

#CA2158 #CA3E21 #CA9221

triadic

#CA3E21 #21CA3E #3E21CA

tetradic

#CA3E21 #58CA21 #21ADCA #9221CA

square

#CA3E21 #58CA21 #21ADCA #9221CA

split-complementary

#CA3E21 #21CA92 #2158CA

monochromatic

#611E10 #952E18 #CA3E21 #E16247 #EA8F7C

Accessibility & contrast

On white

4.97

#CA3E21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#CA3E21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3E21

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3E21	#FFFFFF	#000000	##FFFFFF
##CA3E21	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685C1C

Deuteranopia (green-blind)

#8A7B19

Tritanopia (blue-blind)

#DF0339

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #ca3e21;
/* rgb */ color: rgb(202, 62, 33);
/* oklch */ color: oklch(56.5% 0.181 33.4);

Tailwind

colors: {
  custom: {
    50: '#e47b60',
    500: '#ca3e21',
    950: '#000000',
  },
}

SCSS

$custom: #ca3e21;
$custom-light: #e47b60;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3e21",
  "rgb": {
    "r": 202,
    "g": 62,
    "b": 33
  },
  "hsl": {
    "h": 10.296,
    "s": 71.915,
    "l": 46.078
  },
  "oklch": {
    "l": 0.56478,
    "c": 0.18149,
    "h": 33.4
  },
  "luminance": 0.16112
}

Semantic roles & 50–950 ramp

primary

#CA3E21

secondary

#75C2D2

accent

#CFEF39

background

#FFF7F5

surface

#FFEEE9

border

#D7C9C5

text

#180A05

muted

#867C79

Preview Lab

Preview with #CA3E21

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

Preview Lab → · Contrast checker → · Palette generator →