#3524BB#3524BB

#3524BB is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.6% C 0.218 H 275.6°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#3524BB
RGB	rgb(53, 36, 187)
HSL	hsl(247, 68%, 44%)
HSV	hsv(247, 81%, 73%)
CMYK	cmyk(71.7%, 80.7%, 0%, 26.7%)
CIE-LAB	lab(28.39, 52.79, -75.15)
CIE-LCH	lch(28.39, 91.84, 305.09°)
OKLab	oklab(40.62% 0.0212 -0.2172)
OKLCH	oklch(40.62% 0.218 275.6)
XYZ	xyz(11.0658, 5.6054, 47.5029)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3524BB #AABB24

analogous

#245EBB #3524BB #8024BB

triadic

#3524BB #BB3524 #24BB35

tetradic

#3524BB #BB245E #AABB24 #24BB80

square

#3524BB #BB245E #AABB24 #24BB80

split-complementary

#3524BB #BB8024 #5EBB24

monochromatic

#181054 #261A88 #3524BB #5342DB #8275E4

Accessibility & contrast

On white

9.90

#3524BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#3524BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3524BB

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3524BB	#FFFFFF	#000000	##FFFFFF
##3524BB	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049BF

Deuteranopia (green-blind)

#003CB8

Tritanopia (blue-blind)

#005370

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3524bb;
/* rgb */ color: rgb(53, 36, 187);
/* oklch */ color: oklch(40.6% 0.218 275.6);

Tailwind

colors: {
  custom: {
    50: '#8163d1',
    500: '#3524bb',
    950: '#000000',
  },
}

SCSS

$custom: #3524bb;
$custom-light: #8163d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3524bb",
  "rgb": {
    "r": 53,
    "g": 36,
    "b": 187
  },
  "hsl": {
    "h": 246.755,
    "s": 67.713,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40615,
    "c": 0.21828,
    "h": 275.6
  },
  "luminance": 0.05606
}

Semantic roles & 50–950 ramp

primary

#3524BB

secondary

#C1CC6F

accent

#EB3DD7

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #3524BB

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

Preview Lab → · Contrast checker → · Palette generator →