#3539B7#3539B7

#3539B7 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.1% C 0.193 H 273.4°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#3539B7
RGB	rgb(53, 57, 183)
HSL	hsl(238, 55%, 46%)
HSV	hsv(238, 71%, 72%)
CMYK	cmyk(71%, 68.9%, 0%, 28.2%)
CIE-LAB	lab(32.04, 40.08, -66.77)
CIE-LCH	lch(32.04, 77.87, 300.97°)
OKLab	oklab(43.07% 0.0115 -0.193)
OKLCH	oklch(43.07% 0.193 273.4)
XYZ	xyz(11.4757, 7.1009, 45.5564)
Luminance	0.0710 (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

#3539B7 #B7B335

analogous

#357AB7 #3539B7 #7235B7

triadic

#3539B7 #B73539 #39B735

tetradic

#3539B7 #B7357A #B7B335 #35B772

square

#3539B7 #B7357A #B7B335 #35B772

split-complementary

#3539B7 #B77235 #7AB735

monochromatic

#1A1B58 #272A88 #3539B7 #5A5ECF #898CDD

Accessibility & contrast

On white

8.68

#3539B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3539B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3539B7

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3539B7	#FFFFFF	#000000	##FFFFFF
##3539B7	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BB

Deuteranopia (green-blind)

#0045B5

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3539b7;
/* rgb */ color: rgb(53, 57, 183);
/* oklch */ color: oklch(43.1% 0.193 273.4);

Tailwind

colors: {
  custom: {
    50: '#7f70ce',
    500: '#3539b7',
    950: '#000000',
  },
}

SCSS

$custom: #3539b7;
$custom-light: #7f70ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3539b7",
  "rgb": {
    "r": 53,
    "g": 57,
    "b": 183
  },
  "hsl": {
    "h": 238.154,
    "s": 55.085,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43072,
    "c": 0.19335,
    "h": 273.4
  },
  "luminance": 0.07102
}

Semantic roles & 50–950 ramp

primary

#3539B7

secondary

#C7C581

accent

#DA49DE

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3539B7

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

Preview Lab → · Contrast checker → · Palette generator →