#CA3511#CA3511

#CA3511 is a mid, vivid red. Relative luminance 0.151; OKLCH L 55.5% C 0.191 H 33.8°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#CA3511
RGB	rgb(202, 53, 17)
HSL	hsl(12, 84%, 43%)
HSV	hsv(12, 92%, 79%)
CMYK	cmyk(0%, 73.8%, 91.6%, 20.8%)
CIE-LAB	lab(45.84, 56.93, 52.99)
CIE-LCH	lch(45.84, 77.78, 42.94°)
OKLab	oklab(55.48% 0.1585 0.1062)
OKLCH	oklch(55.48% 0.191 33.8)
XYZ	xyz(25.7346, 15.1474, 2.0989)
Luminance	0.1514 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3511 #11A6CA

analogous

#CA1149 #CA3511 #CA9211

triadic

#CA3511 #11CA35 #3511CA

tetradic

#CA3511 #49CA11 #11A6CA #9211CA

square

#CA3511 #49CA11 #11A6CA #9211CA

split-complementary

#CA3511 #11CA92 #1149CA

monochromatic

#591707 #92260C #CA3511 #ED512B #F27F63

Accessibility & contrast

On white

5.21

#CA3511 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#CA3511 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3511

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3511	#FFFFFF	#000000	##FFFFFF
##CA3511	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645706

Deuteranopia (green-blind)

#887900

Tritanopia (blue-blind)

#DF0030

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #ca3511;
/* rgb */ color: rgb(202, 53, 17);
/* oklch */ color: oklch(55.5% 0.191 33.8);

Tailwind

colors: {
  custom: {
    50: '#e57756',
    500: '#ca3511',
    950: '#000000',
  },
}

SCSS

$custom: #ca3511;
$custom-light: #e57756;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3511",
  "rgb": {
    "r": 202,
    "g": 53,
    "b": 17
  },
  "hsl": {
    "h": 11.676,
    "s": 84.475,
    "l": 42.941
  },
  "oklch": {
    "l": 0.55483,
    "c": 0.19079,
    "h": 33.8
  },
  "luminance": 0.15143
}

Semantic roles & 50–950 ramp

primary

#CA3511

secondary

#61BFD6

accent

#D3FB2D

background

#FFF7F5

surface

#FFEEE9

border

#D7C9C5

text

#180903

muted

#867B78

Preview Lab

Preview with #CA3511

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

Preview Lab → · Contrast checker → · Palette generator →