#3539B8#3539B8

#3539B8 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.2% C 0.195 H 273.3°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#3539B8
RGB	rgb(53, 57, 184)
HSL	hsl(238, 55%, 46%)
HSV	hsv(238, 71%, 72%)
CMYK	cmyk(71.2%, 69%, 0%, 27.8%)
CIE-LAB	lab(32.13, 40.42, -67.20)
CIE-LCH	lch(32.13, 78.42, 301.02°)
OKLab	oklab(43.17% 0.0114 -0.1943)
OKLCH	oklch(43.17% 0.195 273.3)
XYZ	xyz(11.5802, 7.1427, 46.1065)
Luminance	0.0714 (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

#3539B8 #B8B435

analogous

#357BB8 #3539B8 #7335B8

triadic

#3539B8 #B83539 #39B835

tetradic

#3539B8 #B8357B #B8B435 #35B873

square

#3539B8 #B8357B #B8B435 #35B873

split-complementary

#3539B8 #B87335 #7BB835

monochromatic

#1A1C59 #272A88 #3539B8 #5B5ED0 #8A8DDD

Accessibility & contrast

On white

8.65

#3539B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3539B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3539B8

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3539B8	#FFFFFF	#000000	##FFFFFF
##3539B8	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BC

Deuteranopia (green-blind)

#0045B6

Tritanopia (blue-blind)

#005C74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3539b8;
/* rgb */ color: rgb(53, 57, 184);
/* oklch */ color: oklch(43.2% 0.195 273.3);

Tailwind

colors: {
  custom: {
    50: '#7f70ce',
    500: '#3539b8',
    950: '#000000',
  },
}

SCSS

$custom: #3539b8;
$custom-light: #7f70ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3539b8",
  "rgb": {
    "r": 53,
    "g": 57,
    "b": 184
  },
  "hsl": {
    "h": 238.168,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43168,
    "c": 0.19462,
    "h": 273.3
  },
  "luminance": 0.07144
}

Semantic roles & 50–950 ramp

primary

#3539B8

secondary

#C7C581

accent

#DA49DF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3539B8

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

Preview Lab → · Contrast checker → · Palette generator →