#3537BA#3537BA

#3537BA is a dark, vivid blue. Relative luminance 0.070; OKLCH L 43.0% C 0.199 H 273.5°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#3537BA
RGB	rgb(53, 55, 186)
HSL	hsl(239, 56%, 47%)
HSV	hsv(239, 72%, 73%)
CMYK	cmyk(71.5%, 70.4%, 0%, 27.1%)
CIE-LAB	lab(31.88, 42.29, -68.79)
CIE-LCH	lch(31.88, 80.75, 301.58°)
OKLab	oklab(43.05% 0.0123 -0.1989)
OKLCH	oklch(43.05% 0.199 273.5)
XYZ	xyz(11.6944, 7.0333, 47.1861)
Luminance	0.0703 (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

#3537BA #BAB835

analogous

#357ABA #3537BA #7635BA

triadic

#3537BA #BA3537 #37BA35

tetradic

#3537BA #BA357A #BAB835 #35BA76

square

#3537BA #BA357A #BAB835 #35BA76

split-complementary

#3537BA #BA7635 #7ABA35

monochromatic

#1A1B5B #27298A #3537BA #5C5DD0 #8B8DDE

Accessibility & contrast

On white

8.73

#3537BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3537BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537BA

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537BA	#FFFFFF	#000000	##FFFFFF
##3537BA	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BE

Deuteranopia (green-blind)

#0045B8

Tritanopia (blue-blind)

#005B74

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3537ba;
/* rgb */ color: rgb(53, 55, 186);
/* oklch */ color: oklch(43.0% 0.199 273.5);

Tailwind

colors: {
  custom: {
    50: '#806fd0',
    500: '#3537ba',
    950: '#000000',
  },
}

SCSS

$custom: #3537ba;
$custom-light: #806fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3537ba",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 186
  },
  "hsl": {
    "h": 239.098,
    "s": 55.649,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43048,
    "c": 0.19931,
    "h": 273.5
  },
  "luminance": 0.07034
}

Semantic roles & 50–950 ramp

primary

#3537BA

secondary

#C8C782

accent

#DD49DF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3537BA

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

Preview Lab → · Contrast checker → · Palette generator →