#3531B2#3531B2

#3531B2 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.3% C 0.196 H 275.0°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#3531B2
RGB	rgb(53, 49, 178)
HSL	hsl(242, 57%, 45%)
HSV	hsv(242, 72%, 70%)
CMYK	cmyk(70.2%, 72.5%, 0%, 30.2%)
CIE-LAB	lab(29.83, 43.13, -67.42)
CIE-LCH	lch(29.83, 80.04, 302.61°)
OKLab	oklab(41.34% 0.017 -0.1949)
OKLCH	oklch(41.34% 0.196 275)
XYZ	xyz(10.5997, 6.1669, 42.7426)
Luminance	0.0617 (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

#3531B2 #AEB231

analogous

#316EB2 #3531B2 #7531B2

triadic

#3531B2 #B23531 #31B235

tetradic

#3531B2 #B2316E #AEB231 #31B275

square

#3531B2 #B2316E #AEB231 #31B275

split-complementary

#3531B2 #B27531 #6EB231

monochromatic

#181752 #272482 #3531B2 #5551CF #8481DC

Accessibility & contrast

On white

9.40

#3531B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3531B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3531B2

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3531B2	#FFFFFF	#000000	##FFFFFF
##3531B2	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB6

Deuteranopia (green-blind)

#0040B0

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3531b2;
/* rgb */ color: rgb(53, 49, 178);
/* oklch */ color: oklch(41.3% 0.196 275.0);

Tailwind

colors: {
  custom: {
    50: '#7e6bca',
    500: '#3531b2',
    950: '#000000',
  },
}

SCSS

$custom: #3531b2;
$custom-light: #7e6bca;
$custom-dark: #000000;

JSON

{
  "hex": "#3531b2",
  "rgb": {
    "r": 53,
    "g": 49,
    "b": 178
  },
  "hsl": {
    "h": 241.86,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41342,
    "c": 0.19565,
    "h": 275
  },
  "luminance": 0.06168
}

Semantic roles & 50–950 ramp

primary

#3531B2

secondary

#C3C579

accent

#E048DB

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3531B2

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

Preview Lab → · Contrast checker → · Palette generator →