#4237C1#4237C1

#4237C1 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.6% C 0.205 H 277.6°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#4237C1
RGB	rgb(66, 55, 193)
HSL	hsl(245, 56%, 49%)
HSV	hsv(245, 72%, 76%)
CMYK	cmyk(65.8%, 71.5%, 0%, 24.3%)
CIE-LAB	lab(33.44, 46.08, -70.33)
CIE-LCH	lch(33.44, 84.08, 303.23°)
OKLab	oklab(44.59% 0.0272 -0.2031)
OKLCH	oklch(44.59% 0.205 277.6)
XYZ	xyz(13.2355, 7.7398, 51.2382)
Luminance	0.0774 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4237C1 #B6C137

analogous

#3771C1 #4237C1 #8737C1

triadic

#4237C1 #C14237 #37C142

tetradic

#4237C1 #C13771 #B6C137 #37C187

square

#4237C1 #C13771 #B6C137 #37C187

split-complementary

#4237C1 #C18737 #71C137

monochromatic

#211C62 #322991 #4237C1 #6C63D2 #9992E0

Accessibility & contrast

On white

8.24

#4237C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#4237C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4237C1

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4237C1	#FFFFFF	#000000	##FFFFFF
##4237C1	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C5

Deuteranopia (green-blind)

#0049BE

Tritanopia (blue-blind)

#005D78

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4237c1;
/* rgb */ color: rgb(66, 55, 193);
/* oklch */ color: oklch(44.6% 0.205 277.6);

Tailwind

colors: {
  custom: {
    50: '#8770d5',
    500: '#4237c1',
    950: '#000000',
  },
}

SCSS

$custom: #4237c1;
$custom-light: #8770d5;
$custom-dark: #000000;

JSON

{
  "hex": "#4237c1",
  "rgb": {
    "r": 66,
    "g": 55,
    "b": 193
  },
  "hsl": {
    "h": 244.783,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.44591,
    "c": 0.2049,
    "h": 277.6
  },
  "luminance": 0.07741
}

Semantic roles & 50–950 ramp

primary

#4237C1

secondary

#C6CB89

accent

#DF49D3

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4237C1

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

Preview Lab → · Contrast checker → · Palette generator →