#3539AA#3539AA

#3539AA is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.8% C 0.177 H 274.2°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#3539AA
RGB	rgb(53, 57, 170)
HSL	hsl(238, 52%, 44%)
HSV	hsv(238, 69%, 67%)
CMYK	cmyk(68.8%, 66.5%, 0%, 33.3%)
CIE-LAB	lab(30.84, 35.58, -60.98)
CIE-LCH	lch(30.84, 70.60, 300.26°)
OKLab	oklab(41.84% 0.0129 -0.1761)
OKLCH	oklch(41.84% 0.177 274.2)
XYZ	xyz(10.1846, 6.5845, 38.7566)
Luminance	0.0659 (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

#3539AA #AAA635

analogous

#3573AA #3539AA #6B35AA

triadic

#3539AA #AA3539 #39AA35

tetradic

#3539AA #AA3573 #AAA635 #35AA6B

square

#3539AA #AA3573 #AAA635 #35AA6B

split-complementary

#3539AA #AA6B35 #73AA35

monochromatic

#181A4D #26297B #3539AA #5357C9 #8284D8

Accessibility & contrast

On white

9.06

#3539AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#3539AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3539AA

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3539AA	#FFFFFF	#000000	##FFFFFF
##3539AA	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAE

Deuteranopia (green-blind)

#0043A8

Tritanopia (blue-blind)

#00576C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3539aa;
/* rgb */ color: rgb(53, 57, 170);
/* oklch */ color: oklch(41.8% 0.177 274.2);

Tailwind

colors: {
  custom: {
    50: '#7c70c4',
    500: '#3539aa',
    950: '#000000',
  },
}

SCSS

$custom: #3539aa;
$custom-light: #7c70c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3539aa",
  "rgb": {
    "r": 53,
    "g": 57,
    "b": 170
  },
  "hsl": {
    "h": 237.949,
    "s": 52.466,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41841,
    "c": 0.17654,
    "h": 274.2
  },
  "luminance": 0.06585
}

Semantic roles & 50–950 ramp

primary

#3539AA

secondary

#C1BF7A

accent

#D74CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3539AA

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

Preview Lab → · Contrast checker → · Palette generator →