#3237B1#3237B1

#3237B1 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.0% C 0.189 H 273.0°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#3237B1
RGB	rgb(50, 55, 177)
HSL	hsl(238, 56%, 45%)
HSV	hsv(238, 72%, 69%)
CMYK	cmyk(71.8%, 68.9%, 0%, 30.6%)
CIE-LAB	lab(30.84, 38.89, -65.17)
CIE-LCH	lch(30.84, 75.89, 300.82°)
OKLab	oklab(41.99% 0.01 -0.1884)
OKLCH	oklch(41.99% 0.189 273)
XYZ	xyz(10.6147, 6.5838, 42.2978)
Luminance	0.0659 (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

#3237B1 #B1AC32

analogous

#3277B1 #3237B1 #6D32B1

triadic

#3237B1 #B13237 #37B132

tetradic

#3237B1 #B13277 #B1AC32 #32B16D

square

#3237B1 #B13277 #B1AC32 #32B16D

split-complementary

#3237B1 #B16D32 #77B132

monochromatic

#171952 #252881 #3237B1 #5257CE #8285DC

Accessibility & contrast

On white

9.06

#3237B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#3237B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3237B1

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3237B1	#FFFFFF	#000000	##FFFFFF
##3237B1	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB5

Deuteranopia (green-blind)

#0043AF

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3237b1;
/* rgb */ color: rgb(50, 55, 177);
/* oklch */ color: oklch(42.0% 0.189 273.0);

Tailwind

colors: {
  custom: {
    50: '#7c6ec9',
    500: '#3237b1',
    950: '#000000',
  },
}

SCSS

$custom: #3237b1;
$custom-light: #7c6ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#3237b1",
  "rgb": {
    "r": 50,
    "g": 55,
    "b": 177
  },
  "hsl": {
    "h": 237.638,
    "s": 55.947,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41988,
    "c": 0.18868,
    "h": 273
  },
  "luminance": 0.06585
}

Semantic roles & 50–950 ramp

primary

#3237B1

secondary

#C5C27A

accent

#D949DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3237B1

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

Preview Lab → · Contrast checker → · Palette generator →