#3528B8#3528B8

#3528B8 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.8% C 0.211 H 275.5°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#3528B8
RGB	rgb(53, 40, 184)
HSL	hsl(245, 64%, 44%)
HSV	hsv(245, 78%, 72%)
CMYK	cmyk(71.2%, 78.3%, 0%, 27.8%)
CIE-LAB	lab(28.73, 49.93, -72.81)
CIE-LCH	lch(28.73, 88.29, 304.44°)
OKLab	oklab(40.75% 0.0203 -0.2105)
OKLCH	oklch(40.75% 0.211 275.5)
XYZ	xyz(10.8759, 5.7341, 45.8717)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3528B8 #ABB828

analogous

#2863B8 #3528B8 #7D28B8

triadic

#3528B8 #B83528 #28B835

tetradic

#3528B8 #B82863 #ABB828 #28B87D

square

#3528B8 #B82863 #ABB828 #28B87D

split-complementary

#3528B8 #B87D28 #63B828

monochromatic

#181253 #271D86 #3528B8 #5346D7 #8279E2

Accessibility & contrast

On white

9.78

#3528B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3528B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3528B8

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3528B8	#FFFFFF	#000000	##FFFFFF
##3528B8	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABC

Deuteranopia (green-blind)

#003DB5

Tritanopia (blue-blind)

#005470

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3528b8;
/* rgb */ color: rgb(53, 40, 184);
/* oklch */ color: oklch(40.8% 0.211 275.5);

Tailwind

colors: {
  custom: {
    50: '#8165cf',
    500: '#3528b8',
    950: '#000000',
  },
}

SCSS

$custom: #3528b8;
$custom-light: #8165cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3528b8",
  "rgb": {
    "r": 53,
    "g": 40,
    "b": 184
  },
  "hsl": {
    "h": 245.417,
    "s": 64.286,
    "l": 43.922
  },
  "oklch": {
    "l": 0.40752,
    "c": 0.21149,
    "h": 275.5
  },
  "luminance": 0.05735
}

Semantic roles & 50–950 ramp

primary

#3528B8

secondary

#C2CA72

accent

#E741D8

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3528B8

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

Preview Lab → · Contrast checker → · Palette generator →