#3537CC#3537CC

#3537CC is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.9% C 0.221 H 272.5°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#3537CC
RGB	rgb(53, 55, 204)
HSL	hsl(239, 60%, 50%)
HSV	hsv(239, 74%, 80%)
CMYK	cmyk(74%, 73%, 0%, 20%)
CIE-LAB	lab(33.66, 48.28, -76.41)
CIE-LCH	lch(33.66, 90.39, 302.29°)
OKLab	oklab(44.86% 0.0095 -0.2211)
OKLCH	oklch(44.86% 0.221 272.5)
XYZ	xyz(13.7298, 7.8475, 57.9062)
Luminance	0.0785 (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

#3537CC #CCCA35

analogous

#3583CC #3537CC #7E35CC

triadic

#3537CC #CC3537 #37CC35

tetradic

#3537CC #CC3583 #CCCA35 #35CC7E

square

#3537CC #CC3583 #CCCA35 #35CC7E

split-complementary

#3537CC #CC7E35 #83CC35

monochromatic

#1B1C6B #27299C #3537CC #6667D8 #9798E5

Accessibility & contrast

On white

8.17

#3537CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3537CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537CC

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537CC	#FFFFFF	#000000	##FFFFFF
##3537CC	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056D0

Deuteranopia (green-blind)

#0048C9

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3537cc;
/* rgb */ color: rgb(53, 55, 204);
/* oklch */ color: oklch(44.9% 0.221 272.5);

Tailwind

colors: {
  custom: {
    50: '#846fdd',
    500: '#3537cc',
    950: '#000000',
  },
}

SCSS

$custom: #3537cc;
$custom-light: #846fdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3537cc",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 204
  },
  "hsl": {
    "h": 239.205,
    "s": 59.684,
    "l": 50.392
  },
  "oklch": {
    "l": 0.44855,
    "c": 0.22133,
    "h": 272.5
  },
  "luminance": 0.07849
}

Semantic roles & 50–950 ramp

primary

#3537CC

secondary

#D0CF8D

accent

#E145E3

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3537CC

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

Preview Lab → · Contrast checker → · Palette generator →