#E33D3B#E33D3B

#E33D3B is a mid, highly saturated red. Relative luminance 0.200; OKLCH L 60.9% C 0.203 H 26.2°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#E33D3B
RGB	rgb(227, 61, 59)
HSL	hsl(1, 75%, 56%)
HSV	hsv(1, 74%, 89%)
CMYK	cmyk(0%, 73.1%, 74%, 11%)
CIE-LAB	lab(51.83, 63.07, 40.01)
CIE-LCH	lch(51.83, 74.69, 32.39°)
OKLab	oklab(60.9% 0.1823 0.0896)
OKLCH	oklch(60.9% 0.203 26.2)
XYZ	xyz(34.1407, 19.9894, 6.1975)
Luminance	0.1998 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E33D3B #3BE1E3

analogous

#E33B8D #E33D3B #E3913B

triadic

#E33D3B #3BE33D #3D3BE3

tetradic

#E33D3B #8DE33B #3BE1E3 #913BE3

square

#E33D3B #8DE33B #3BE1E3 #913BE3

split-complementary

#E33D3B #3BE391 #3B8DE3

monochromatic

#8F1614 #C51E1C #E33D3B #EB7271 #F2A7A6

Accessibility & contrast

On white

4.20

#E33D3B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#E33D3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #E33D3B

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E33D3B	#FFFFFF	#000000	##000000
##E33D3B	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E6539

Deuteranopia (green-blind)

#988935

Tritanopia (blue-blind)

#FA003F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #e33d3b;
/* rgb */ color: rgb(227, 61, 59);
/* oklch */ color: oklch(60.9% 0.203 26.2);

Tailwind

colors: {
  custom: {
    50: '#f57e71',
    500: '#e33d3b',
    950: '#000000',
  },
}

SCSS

$custom: #e33d3b;
$custom-light: #f57e71;
$custom-dark: #000000;

JSON

{
  "hex": "#e33d3b",
  "rgb": {
    "r": 227,
    "g": 61,
    "b": 59
  },
  "hsl": {
    "h": 0.714,
    "s": 75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.60903,
    "c": 0.20317,
    "h": 26.2
  },
  "luminance": 0.19984
}

Semantic roles & 50–950 ramp

primary

#E33D3B

secondary

#9ADFE0

accent

#EFF236

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#190B08

muted

#867C7B

Preview Lab

Preview with #E33D3B

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

Preview Lab → · Contrast checker → · Palette generator →