#E63B3B#E63B3B

#E63B3B is a mid, highly saturated red. Relative luminance 0.203; OKLCH L 61.2% C 0.208 H 25.8°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#E63B3B
RGB	rgb(230, 59, 59)
HSL	hsl(0, 77%, 57%)
HSV	hsv(0, 74%, 90%)
CMYK	cmyk(0%, 74.3%, 74.3%, 9.8%)
CIE-LAB	lab(52.14, 64.63, 40.51)
CIE-LCH	lch(52.14, 76.28, 32.08°)
OKLab	oklab(61.24% 0.1869 0.0905)
OKLCH	oklch(61.24% 0.208 25.8)
XYZ	xyz(34.9906, 20.2721, 6.2073)
Luminance	0.2027 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E63B3B #3BE6E6

analogous

#E63B91 #E63B3B #E6913B

triadic

#E63B3B #3BE63B #3B3BE6

tetradic

#E63B3B #91E63B #3BE6E6 #913BE6

square

#E63B3B #91E63B #3BE6E6 #913BE6

split-complementary

#E63B3B #3BE691 #3B91E6

monochromatic

#941313 #CA1A1A #E63B3B #ED7171 #F4A8A8

Accessibility & contrast

On white

4.16

#E63B3B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#E63B3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #E63B3B

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E63B3B	#FFFFFF	#000000	##000000
##E63B3B	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F6539

Deuteranopia (green-blind)

#998A34

Tritanopia (blue-blind)

#FD003D

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #e63b3b;
/* rgb */ color: rgb(230, 59, 59);
/* oklch */ color: oklch(61.2% 0.208 25.8);

Tailwind

colors: {
  custom: {
    50: '#f77e71',
    500: '#e63b3b',
    950: '#000000',
  },
}

SCSS

$custom: #e63b3b;
$custom-light: #f77e71;
$custom-dark: #000000;

JSON

{
  "hex": "#e63b3b",
  "rgb": {
    "r": 230,
    "g": 59,
    "b": 59
  },
  "hsl": {
    "h": 0,
    "s": 77.376,
    "l": 56.667
  },
  "oklch": {
    "l": 0.6124,
    "c": 0.20765,
    "h": 25.8
  },
  "luminance": 0.20267
}

Semantic roles & 50–950 ramp

primary

#E63B3B

secondary

#9BE1E1

accent

#F4F434

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#190B08

muted

#867C7B

Preview Lab

Preview with #E63B3B

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

Preview Lab → · Contrast checker → · Palette generator →