#3539AC#3539AC

#3539AC is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.0% C 0.179 H 274.1°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#3539AC
RGB	rgb(53, 57, 172)
HSL	hsl(238, 53%, 44%)
HSV	hsv(238, 69%, 67%)
CMYK	cmyk(69.2%, 66.9%, 0%, 32.5%)
CIE-LAB	lab(31.02, 36.28, -61.88)
CIE-LCH	lch(31.02, 71.73, 300.38°)
OKLab	oklab(42.03% 0.0127 -0.1787)
OKLCH	oklch(42.03% 0.179 274.1)
XYZ	xyz(10.3752, 6.6607, 39.7606)
Luminance	0.0666 (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

#3539AC #ACA835

analogous

#3575AC #3539AC #6D35AC

triadic

#3539AC #AC3539 #39AC35

tetradic

#3539AC #AC3575 #ACA835 #35AC6D

square

#3539AC #AC3575 #ACA835 #35AC6D

split-complementary

#3539AC #AC6D35 #75AC35

monochromatic

#181A4E #27297D #3539AC #5458CA #8386D9

Accessibility & contrast

On white

9.00

#3539AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#3539AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3539AC

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3539AC	#FFFFFF	#000000	##FFFFFF
##3539AC	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB0

Deuteranopia (green-blind)

#0044AA

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3539ac;
/* rgb */ color: rgb(53, 57, 172);
/* oklch */ color: oklch(42.0% 0.179 274.1);

Tailwind

colors: {
  custom: {
    50: '#7c70c6',
    500: '#3539ac',
    950: '#000000',
  },
}

SCSS

$custom: #3539ac;
$custom-light: #7c70c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3539ac",
  "rgb": {
    "r": 53,
    "g": 57,
    "b": 172
  },
  "hsl": {
    "h": 237.983,
    "s": 52.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42028,
    "c": 0.17917,
    "h": 274.1
  },
  "luminance": 0.06662
}

Semantic roles & 50–950 ramp

primary

#3539AC

secondary

#C2C07B

accent

#D74CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3539AC

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

Preview Lab → · Contrast checker → · Palette generator →