#3237BB#3237BB

#3237BB is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 43.0% C 0.201 H 272.5°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#3237BB
RGB	rgb(50, 55, 187)
HSL	hsl(238, 58%, 46%)
HSV	hsv(238, 73%, 73%)
CMYK	cmyk(73.3%, 70.6%, 0%, 26.7%)
CIE-LAB	lab(31.80, 42.32, -69.53)
CIE-LCH	lch(31.80, 81.39, 301.33°)
OKLab	oklab(42.97% 0.0087 -0.2011)
OKLCH	oklch(42.97% 0.201 272.5)
XYZ	xyz(11.6482, 6.9972, 47.7408)
Luminance	0.0700 (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

#3237BB #BBB632

analogous

#327CBB #3237BB #7232BB

triadic

#3237BB #BB3237 #37BB32

tetradic

#3237BB #BB327C #BBB632 #32BB72

square

#3237BB #BB327C #BBB632 #32BB72

split-complementary

#3237BB #BB7232 #7CBB32

monochromatic

#181B5A #25298B #3237BB #585CD2 #888BDF

Accessibility & contrast

On white

8.75

#3237BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3237BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3237BB

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3237BB	#FFFFFF	#000000	##FFFFFF
##3237BB	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BF

Deuteranopia (green-blind)

#0044B9

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3237bb;
/* rgb */ color: rgb(50, 55, 187);
/* oklch */ color: oklch(43.0% 0.201 272.5);

Tailwind

colors: {
  custom: {
    50: '#7f6fd1',
    500: '#3237bb',
    950: '#000000',
  },
}

SCSS

$custom: #3237bb;
$custom-light: #7f6fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3237bb",
  "rgb": {
    "r": 50,
    "g": 55,
    "b": 187
  },
  "hsl": {
    "h": 237.81,
    "s": 57.806,
    "l": 46.471
  },
  "oklch": {
    "l": 0.4297,
    "c": 0.20132,
    "h": 272.5
  },
  "luminance": 0.06998
}

Semantic roles & 50–950 ramp

primary

#3237BB

secondary

#C9C680

accent

#DB47E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3237BB

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

Preview Lab → · Contrast checker → · Palette generator →