#3528B1#3528B1

#3528B1 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 40.0% C 0.203 H 276.2°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#3528B1
RGB	rgb(53, 40, 177)
HSL	hsl(246, 63%, 43%)
HSV	hsv(246, 77%, 69%)
CMYK	cmyk(70.1%, 77.4%, 0%, 30.6%)
CIE-LAB	lab(27.97, 47.75, -69.89)
CIE-LCH	lch(27.97, 84.64, 304.34°)
OKLab	oklab(40% 0.022 -0.202)
OKLCH	oklch(40% 0.203 276.2)
XYZ	xyz(10.1602, 5.4479, 42.1025)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3528B1 #A4B128

analogous

#2860B1 #3528B1 #7928B1

triadic

#3528B1 #B13528 #28B135

tetradic

#3528B1 #B12860 #A4B128 #28B179

square

#3528B1 #B12860 #A4B128 #28B179

split-complementary

#3528B1 #B17928 #60B128

monochromatic

#17114D #261D7F #3528B1 #5042D4 #7E74E0

Accessibility & contrast

On white

10.05

#3528B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#3528B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3528B1

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3528B1	#FFFFFF	#000000	##FFFFFF
##3528B1	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B5

Deuteranopia (green-blind)

#003CAF

Tritanopia (blue-blind)

#00516B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3528b1;
/* rgb */ color: rgb(53, 40, 177);
/* oklch */ color: oklch(40.0% 0.203 276.2);

Tailwind

colors: {
  custom: {
    50: '#7f65ca',
    500: '#3528b1',
    950: '#000000',
  },
}

SCSS

$custom: #3528b1;
$custom-light: #7f65ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3528b1",
  "rgb": {
    "r": 53,
    "g": 40,
    "b": 177
  },
  "hsl": {
    "h": 245.693,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.39999,
    "c": 0.20322,
    "h": 276.2
  },
  "luminance": 0.05449
}

Semantic roles & 50–950 ramp

primary

#3528B1

secondary

#BEC76E

accent

#E642D7

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3528B1

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

Preview Lab → · Contrast checker → · Palette generator →