#D33B3A#D33B3A

#D33B3A is a mid, vivid red. Relative luminance 0.173; OKLCH L 58.0% C 0.189 H 25.6°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#D33B3A
RGB	rgb(211, 59, 58)
HSL	hsl(0, 63%, 53%)
HSV	hsv(0, 73%, 83%)
CMYK	cmyk(0%, 72%, 72.5%, 17.3%)
CIE-LAB	lab(48.62, 58.83, 36.15)
CIE-LCH	lch(48.62, 69.05, 31.57°)
OKLab	oklab(57.98% 0.1706 0.0819)
OKLCH	oklch(57.98% 0.189 25.6)
XYZ	xyz(29.1950, 17.2867, 5.8016)
Luminance	0.1728 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D33B3A #3AD2D3

analogous

#D33A86 #D33B3A #D3873A

triadic

#D33B3A #3AD33B #3B3AD3

tetradic

#D33B3A #86D33A #3AD2D3 #873AD3

square

#D33B3A #86D33A #3AD2D3 #873AD3

split-complementary

#D33B3A #3AD387 #3A86D3

monochromatic

#781B1B #AA2726 #D33B3A #DE6D6C #E99F9E

Accessibility & contrast

On white

4.71

#D33B3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#D33B3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #D33B3A

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D33B3A	#FFFFFF	#000000	##FFFFFF
##D33B3A	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#675E38

Deuteranopia (green-blind)

#8D7F35

Tritanopia (blue-blind)

#E8003D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #d33b3a;
/* rgb */ color: rgb(211, 59, 58);
/* oklch */ color: oklch(58.0% 0.189 25.6);

Tailwind

colors: {
  custom: {
    50: '#e97c70',
    500: '#d33b3a',
    950: '#000000',
  },
}

SCSS

$custom: #d33b3a;
$custom-light: #e97c70;
$custom-dark: #000000;

JSON

{
  "hex": "#d33b3a",
  "rgb": {
    "r": 211,
    "g": 59,
    "b": 58
  },
  "hsl": {
    "h": 0.392,
    "s": 63.485,
    "l": 52.745
  },
  "oklch": {
    "l": 0.57975,
    "c": 0.18928,
    "h": 25.6
  },
  "luminance": 0.17282
}

Semantic roles & 50–950 ramp

primary

#D33B3A

secondary

#93D5D6

accent

#E5E741

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D33B3A

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

Preview Lab → · Contrast checker → · Palette generator →