#3531AA#3531AA

#3531AA is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.5% C 0.186 H 275.7°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#3531AA
RGB	rgb(53, 49, 170)
HSL	hsl(242, 55%, 43%)
HSV	hsv(242, 71%, 67%)
CMYK	cmyk(68.8%, 71.2%, 0%, 33.3%)
CIE-LAB	lab(29.04, 40.46, -63.93)
CIE-LCH	lch(29.04, 75.66, 302.33°)
OKLab	oklab(40.54% 0.0184 -0.1847)
OKLCH	oklch(40.54% 0.186 275.7)
XYZ	xyz(9.8198, 5.8549, 38.6350)
Luminance	0.0586 (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

#3531AA #A6AA31

analogous

#316AAA #3531AA #7131AA

triadic

#3531AA #AA3531 #31AA35

tetradic

#3531AA #AA316A #A6AA31 #31AA71

square

#3531AA #AA316A #A6AA31 #31AA71

split-complementary

#3531AA #AA7131 #6AAA31

monochromatic

#17164B #26237A #3531AA #514DCC #7F7CD9

Accessibility & contrast

On white

9.67

#3531AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3531AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3531AA

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3531AA	#FFFFFF	#000000	##FFFFFF
##3531AA	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAE

Deuteranopia (green-blind)

#003FA8

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3531aa;
/* rgb */ color: rgb(53, 49, 170);
/* oklch */ color: oklch(40.5% 0.186 275.7);

Tailwind

colors: {
  custom: {
    50: '#7d6ac4',
    500: '#3531aa',
    950: '#000000',
  },
}

SCSS

$custom: #3531aa;
$custom-light: #7d6ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#3531aa",
  "rgb": {
    "r": 53,
    "g": 49,
    "b": 170
  },
  "hsl": {
    "h": 241.983,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40543,
    "c": 0.18562,
    "h": 275.7
  },
  "luminance": 0.05856
}

Semantic roles & 50–950 ramp

primary

#3531AA

secondary

#BFC275

accent

#DF49DA

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3531AA

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

Preview Lab → · Contrast checker → · Palette generator →