#4237AE#4237AE

#4237AE is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.8% C 0.181 H 279.6°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#4237AE
RGB	rgb(66, 55, 174)
HSL	hsl(246, 52%, 45%)
HSV	hsv(246, 68%, 68%)
CMYK	cmyk(62.1%, 68.4%, 0%, 31.8%)
CIE-LAB	lab(31.68, 39.97, -61.96)
CIE-LCH	lch(31.68, 73.73, 302.82°)
OKLab	oklab(42.8% 0.0303 -0.1786)
OKLCH	oklch(42.8% 0.181 279.6)
XYZ	xyz(11.2505, 6.9458, 40.7840)
Luminance	0.0695 (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

#4237AE #A3AE37

analogous

#3768AE #4237AE #7D37AE

triadic

#4237AE #AE4237 #37AE42

tetradic

#4237AE #AE3768 #A3AE37 #37AE7D

square

#4237AE #AE3768 #A3AE37 #37AE7D

split-complementary

#4237AE #AE7D37 #68AE37

monochromatic

#1F1A51 #30287F #4237AE #6358CA #8E86D9

Accessibility & contrast

On white

8.79

#4237AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#4237AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4237AE

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4237AE	#FFFFFF	#000000	##FFFFFF
##4237AE	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB2

Deuteranopia (green-blind)

#0046AC

Tritanopia (blue-blind)

#00566E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4237ae;
/* rgb */ color: rgb(66, 55, 174);
/* oklch */ color: oklch(42.8% 0.181 279.6);

Tailwind

colors: {
  custom: {
    50: '#836fc7',
    500: '#4237ae',
    950: '#000000',
  },
}

SCSS

$custom: #4237ae;
$custom-light: #836fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#4237ae",
  "rgb": {
    "r": 66,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 245.546,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42802,
    "c": 0.18114,
    "h": 279.6
  },
  "luminance": 0.06947
}

Semantic roles & 50–950 ramp

primary

#4237AE

secondary

#BCC37E

accent

#DB4CCE

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4237AE

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

Preview Lab → · Contrast checker → · Palette generator →