#D33D3B#D33D3B

#D33D3B is a mid, vivid red. Relative luminance 0.175; OKLCH L 58.2% C 0.187 H 25.8°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#D33D3B
RGB	rgb(211, 61, 59)
HSL	hsl(1, 63%, 53%)
HSV	hsv(1, 72%, 83%)
CMYK	cmyk(0%, 71.1%, 72%, 17.3%)
CIE-LAB	lab(48.89, 58.15, 35.89)
CIE-LCH	lch(48.89, 68.34, 31.68°)
OKLab	oklab(58.18% 0.1687 0.0816)
OKLCH	oklch(58.18% 0.187 25.8)
XYZ	xyz(29.3254, 17.5066, 5.9718)
Luminance	0.1750 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D33D3B #3BD1D3

analogous

#D33B85 #D33D3B #D3893B

triadic

#D33D3B #3BD33D #3D3BD3

tetradic

#D33D3B #85D33B #3BD1D3 #893BD3

square

#D33D3B #85D33B #3BD1D3 #893BD3

split-complementary

#D33D3B #3BD389 #3B85D3

monochromatic

#791C1B #AB2826 #D33D3B #DE6E6D #E9A09F

Accessibility & contrast

On white

4.67

#D33D3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#D33D3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #D33D3B

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D33D3B	#FFFFFF	#000000	##FFFFFF
##D33D3B	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685F39

Deuteranopia (green-blind)

#8E8036

Tritanopia (blue-blind)

#E8003E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #d33d3b;
/* rgb */ color: rgb(211, 61, 59);
/* oklch */ color: oklch(58.2% 0.187 25.8);

Tailwind

colors: {
  custom: {
    50: '#e97c71',
    500: '#d33d3b',
    950: '#000000',
  },
}

SCSS

$custom: #d33d3b;
$custom-light: #e97c71;
$custom-dark: #000000;

JSON

{
  "hex": "#d33d3b",
  "rgb": {
    "r": 211,
    "g": 61,
    "b": 59
  },
  "hsl": {
    "h": 0.789,
    "s": 63.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.58183,
    "c": 0.18739,
    "h": 25.8
  },
  "luminance": 0.17502
}

Semantic roles & 50–950 ramp

primary

#D33D3B

secondary

#94D5D6

accent

#E4E641

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D33D3B

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

Preview Lab → · Contrast checker → · Palette generator →