#D33D3F#D33D3F

#D33D3F is a mid, vivid red. Relative luminance 0.175; OKLCH L 58.2% C 0.187 H 24.5°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#D33D3F
RGB	rgb(211, 61, 63)
HSL	hsl(359, 63%, 53%)
HSV	hsv(359, 71%, 83%)
CMYK	cmyk(0%, 71.1%, 70.1%, 17.3%)
CIE-LAB	lab(48.95, 58.34, 33.65)
CIE-LCH	lch(48.95, 67.35, 29.98°)
OKLab	oklab(58.24% 0.1701 0.0774)
OKLCH	oklch(58.24% 0.187 24.5)
XYZ	xyz(29.4332, 17.5497, 6.5393)
Luminance	0.1754 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D33D3F #3DD3D1

analogous

#D33D8A #D33D3F #D3863D

triadic

#D33D3F #3FD33D #3D3FD3

tetradic

#D33D3F #8AD33D #3DD3D1 #863DD3

square

#D33D3F #8AD33D #3DD3D1 #863DD3

split-complementary

#D33D3F #3DD386 #3D8AD3

monochromatic

#7A1C1D #AC2729 #D33D3F #DE6F70 #EAA1A2

Accessibility & contrast

On white

4.66

#D33D3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#D33D3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #D33D3F

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D33D3F	#FFFFFF	#000000	##FFFFFF
##D33D3F	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68603E

Deuteranopia (green-blind)

#8D803A

Tritanopia (blue-blind)

#E8003F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #d33d3f;
/* rgb */ color: rgb(211, 61, 63);
/* oklch */ color: oklch(58.2% 0.187 24.5);

Tailwind

colors: {
  custom: {
    50: '#e97d74',
    500: '#d33d3f',
    950: '#000000',
  },
}

SCSS

$custom: #d33d3f;
$custom-light: #e97d74;
$custom-dark: #000000;

JSON

{
  "hex": "#d33d3f",
  "rgb": {
    "r": 211,
    "g": 61,
    "b": 63
  },
  "hsl": {
    "h": 359.2,
    "s": 63.025,
    "l": 53.333
  },
  "oklch": {
    "l": 0.58239,
    "c": 0.18691,
    "h": 24.5
  },
  "luminance": 0.17545
}

Semantic roles & 50–950 ramp

primary

#D33D3F

secondary

#96D6D5

accent

#E6E442

background

#FFF8F7

surface

#FFEFED

border

#D7CAC8

text

#180A08

muted

#867C7B

Preview Lab

Preview with #D33D3F

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

Preview Lab → · Contrast checker → · Palette generator →