#3531BA#3531BA

#3531BA is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.2% C 0.205 H 274.3°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#3531BA
RGB	rgb(53, 49, 186)
HSL	hsl(242, 58%, 46%)
HSV	hsv(242, 74%, 73%)
CMYK	cmyk(71.5%, 73.7%, 0%, 27.1%)
CIE-LAB	lab(30.63, 45.76, -70.85)
CIE-LCH	lch(30.63, 84.34, 302.86°)
OKLab	oklab(42.16% 0.0156 -0.2049)
OKLCH	oklch(42.16% 0.205 274.3)
XYZ	xyz(11.4265, 6.4976, 47.0968)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.94

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3531BA #B6BA31

analogous

#3171BA #3531BA #7931BA

triadic

#3531BA #BA3531 #31BA35

tetradic

#3531BA #BA3171 #B6BA31 #31BA79

square

#3531BA #BA3171 #B6BA31 #31BA79

split-complementary

#3531BA #BA7931 #71BA31

monochromatic

#191759 #27248A #3531BA #5956D2 #8986DF

Accessibility & contrast

On white

9.13

#3531BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3531BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3531BA

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3531BA	#FFFFFF	#000000	##FFFFFF
##3531BA	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBE

Deuteranopia (green-blind)

#0042B8

Tritanopia (blue-blind)

#005873

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3531ba;
/* rgb */ color: rgb(53, 49, 186);
/* oklch */ color: oklch(42.2% 0.205 274.3);

Tailwind

colors: {
  custom: {
    50: '#806bd0',
    500: '#3531ba',
    950: '#000000',
  },
}

SCSS

$custom: #3531ba;
$custom-light: #806bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3531ba",
  "rgb": {
    "r": 53,
    "g": 49,
    "b": 186
  },
  "hsl": {
    "h": 241.752,
    "s": 58.298,
    "l": 46.078
  },
  "oklch": {
    "l": 0.42156,
    "c": 0.20549,
    "h": 274.3
  },
  "luminance": 0.06499
}

Semantic roles & 50–950 ramp

primary

#3531BA

secondary

#C7C97E

accent

#E246DD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3531BA

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

Preview Lab → · Contrast checker → · Palette generator →