#3537AD#3537AD

#3537AD is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.8% C 0.183 H 274.4°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#3537AD
RGB	rgb(53, 55, 173)
HSL	hsl(239, 53%, 44%)
HSV	hsv(239, 69%, 68%)
CMYK	cmyk(69.4%, 68.2%, 0%, 32.2%)
CIE-LAB	lab(30.65, 37.86, -63.08)
CIE-LCH	lch(30.65, 73.57, 300.97°)
OKLab	oklab(41.79% 0.014 -0.1822)
OKLCH	oklch(41.79% 0.183 274.4)
XYZ	xyz(10.3747, 6.5054, 40.2360)
Luminance	0.0651 (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

#3537AD #ADAB35

analogous

#3573AD #3537AD #6F35AD

triadic

#3537AD #AD3537 #37AD35

tetradic

#3537AD #AD3573 #ADAB35 #35AD6F

square

#3537AD #AD3573 #ADAB35 #35AD6F

split-complementary

#3537AD #AD6F35 #73AD35

monochromatic

#18194F #27287E #3537AD #5456CB #8385D9

Accessibility & contrast

On white

9.13

#3537AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3537AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537AD

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537AD	#FFFFFF	#000000	##FFFFFF
##3537AD	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB1

Deuteranopia (green-blind)

#0043AB

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3537ad;
/* rgb */ color: rgb(53, 55, 173);
/* oklch */ color: oklch(41.8% 0.183 274.4);

Tailwind

colors: {
  custom: {
    50: '#7d6ec7',
    500: '#3537ad',
    950: '#000000',
  },
}

SCSS

$custom: #3537ad;
$custom-light: #7d6ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#3537ad",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 173
  },
  "hsl": {
    "h": 239,
    "s": 53.097,
    "l": 44.314
  },
  "oklch": {
    "l": 0.41789,
    "c": 0.18277,
    "h": 274.4
  },
  "luminance": 0.06506
}

Semantic roles & 50–950 ramp

primary

#3537AD

secondary

#C3C17B

accent

#DA4BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3537AD

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

Preview Lab → · Contrast checker → · Palette generator →