#3521BD#3521BD

#3521BD is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.5% C 0.223 H 275.6°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#3521BD
RGB	rgb(53, 33, 189)
HSL	hsl(248, 70%, 44%)
HSV	hsv(248, 83%, 74%)
CMYK	cmyk(72%, 82.5%, 0%, 25.9%)
CIE-LAB	lab(28.16, 54.74, -76.72)
CIE-LCH	lch(28.16, 94.24, 305.51°)
OKLab	oklab(40.52% 0.0217 -0.2217)
OKLCH	oklch(40.52% 0.223 275.6)
XYZ	xyz(11.1943, 5.5176, 48.6093)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3521BD #A9BD21

analogous

#215BBD #3521BD #8321BD

triadic

#3521BD #BD3521 #21BD35

tetradic

#3521BD #BD215B #A9BD21 #21BD83

square

#3521BD #BD215B #A9BD21 #21BD83

split-complementary

#3521BD #BD8321 #5BBD21

monochromatic

#180F55 #261889 #3521BD #523EDD #8172E6

Accessibility & contrast

On white

9.98

#3521BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#3521BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3521BD

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3521BD	#FFFFFF	#000000	##FFFFFF
##3521BD	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049C1

Deuteranopia (green-blind)

#003BBA

Tritanopia (blue-blind)

#005371

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3521bd;
/* rgb */ color: rgb(53, 33, 189);
/* oklch */ color: oklch(40.5% 0.223 275.6);

Tailwind

colors: {
  custom: {
    50: '#8262d2',
    500: '#3521bd',
    950: '#000000',
  },
}

SCSS

$custom: #3521bd;
$custom-light: #8262d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3521bd",
  "rgb": {
    "r": 53,
    "g": 33,
    "b": 189
  },
  "hsl": {
    "h": 247.692,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.4052,
    "c": 0.22281,
    "h": 275.6
  },
  "luminance": 0.05519
}

Semantic roles & 50–950 ramp

primary

#3521BD

secondary

#C1CD6D

accent

#ED3BD6

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #3521BD

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

Preview Lab → · Contrast checker → · Palette generator →