#3528B4#3528B4

#3528B4 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.3% C 0.207 H 275.9°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#3528B4
RGB	rgb(53, 40, 180)
HSL	hsl(246, 64%, 43%)
HSV	hsv(246, 78%, 71%)
CMYK	cmyk(70.6%, 77.8%, 0%, 29.4%)
CIE-LAB	lab(28.30, 48.69, -71.15)
CIE-LCH	lch(28.30, 86.21, 304.39°)
OKLab	oklab(40.32% 0.0213 -0.2057)
OKLCH	oklch(40.32% 0.207 275.9)
XYZ	xyz(10.4625, 5.5688, 43.6947)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3528B4 #A7B428

analogous

#2861B4 #3528B4 #7B28B4

triadic

#3528B4 #B43528 #28B435

tetradic

#3528B4 #B42861 #A7B428 #28B47B

square

#3528B4 #B42861 #A7B428 #28B47B

split-complementary

#3528B4 #B47B28 #61B428

monochromatic

#181250 #261D82 #3528B4 #5144D5 #8076E1

Accessibility & contrast

On white

9.93

#3528B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#3528B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3528B4

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3528B4	#FFFFFF	#000000	##FFFFFF
##3528B4	1.00	9.93	2.11	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B8

Deuteranopia (green-blind)

#003CB2

Tritanopia (blue-blind)

#00526D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3528b4;
/* rgb */ color: rgb(53, 40, 180);
/* oklch */ color: oklch(40.3% 0.207 275.9);

Tailwind

colors: {
  custom: {
    50: '#8065cc',
    500: '#3528b4',
    950: '#000000',
  },
}

SCSS

$custom: #3528b4;
$custom-light: #8065cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3528b4",
  "rgb": {
    "r": 53,
    "g": 40,
    "b": 180
  },
  "hsl": {
    "h": 245.571,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40321,
    "c": 0.20678,
    "h": 275.9
  },
  "luminance": 0.0557
}

Semantic roles & 50–950 ramp

primary

#3528B4

secondary

#C0C870

accent

#E741D7

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3528B4

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

Preview Lab → · Contrast checker → · Palette generator →