#3237B3#3237B3

#3237B3 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.191 H 272.9°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#3237B3
RGB	rgb(50, 55, 179)
HSL	hsl(238, 56%, 45%)
HSV	hsv(238, 72%, 70%)
CMYK	cmyk(72.1%, 69.3%, 0%, 29.8%)
CIE-LAB	lab(31.03, 39.58, -66.05)
CIE-LCH	lch(31.03, 77.00, 300.93°)
OKLab	oklab(42.18% 0.0097 -0.191)
OKLCH	oklch(42.18% 0.191 272.9)
XYZ	xyz(10.8155, 6.6641, 43.3554)
Luminance	0.0667 (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

#3237B3 #B3AE32

analogous

#3278B3 #3237B3 #6D32B3

triadic

#3237B3 #B33237 #37B332

tetradic

#3237B3 #B33278 #B3AE32 #32B36D

square

#3237B3 #B33278 #B3AE32 #32B36D

split-complementary

#3237B3 #B36D32 #78B332

monochromatic

#171A53 #252883 #3237B3 #5358CF #8386DC

Accessibility & contrast

On white

9.00

#3237B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#3237B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3237B3

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3237B3	#FFFFFF	#000000	##FFFFFF
##3237B3	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB7

Deuteranopia (green-blind)

#0043B1

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3237b3;
/* rgb */ color: rgb(50, 55, 179);
/* oklch */ color: oklch(42.2% 0.191 272.9);

Tailwind

colors: {
  custom: {
    50: '#7d6ecb',
    500: '#3237b3',
    950: '#000000',
  },
}

SCSS

$custom: #3237b3;
$custom-light: #7d6ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#3237b3",
  "rgb": {
    "r": 50,
    "g": 55,
    "b": 179
  },
  "hsl": {
    "h": 237.674,
    "s": 56.332,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42182,
    "c": 0.19124,
    "h": 272.9
  },
  "luminance": 0.06665
}

Semantic roles & 50–950 ramp

primary

#3237B3

secondary

#C6C37B

accent

#DA48E0

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3237B3

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

Preview Lab → · Contrast checker → · Palette generator →