#3531A4#3531A4

#3531A4 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.0% C 0.178 H 276.2°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#3531A4
RGB	rgb(53, 49, 164)
HSL	hsl(242, 54%, 42%)
HSV	hsv(242, 70%, 64%)
CMYK	cmyk(67.7%, 70.1%, 0%, 35.7%)
CIE-LAB	lab(28.47, 38.45, -61.26)
CIE-LCH	lch(28.47, 72.33, 302.11°)
OKLab	oklab(39.95% 0.0193 -0.1769)
OKLCH	oklch(39.95% 0.178 276.2)
XYZ	xyz(9.2652, 5.6330, 35.7138)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.76

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3531A4 #A0A431

analogous

#3167A4 #3531A4 #6F31A4

triadic

#3531A4 #A43531 #31A435

tetradic

#3531A4 #A43167 #A0A431 #31A46F

square

#3531A4 #A43167 #A0A431 #31A46F

split-complementary

#3531A4 #A46F31 #67A431

monochromatic

#171546 #262375 #3531A4 #4E49C9 #7C79D7

Accessibility & contrast

On white

9.87

#3531A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3531A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3531A4

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3531A4	#FFFFFF	#000000	##FFFFFF
##3531A4	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A7

Deuteranopia (green-blind)

#003EA2

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3531a4;
/* rgb */ color: rgb(53, 49, 164);
/* oklch */ color: oklch(40.0% 0.178 276.2);

Tailwind

colors: {
  custom: {
    50: '#7b6ac0',
    500: '#3531a4',
    950: '#000000',
  },
}

SCSS

$custom: #3531a4;
$custom-light: #7b6ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#3531a4",
  "rgb": {
    "r": 53,
    "g": 49,
    "b": 164
  },
  "hsl": {
    "h": 242.087,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39954,
    "c": 0.17796,
    "h": 276.2
  },
  "luminance": 0.05634
}

Semantic roles & 50–950 ramp

primary

#3531A4

secondary

#BCBF72

accent

#DD4AD8

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3531A4

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

Preview Lab → · Contrast checker → · Palette generator →