#3528B5#3528B5

#3528B5 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.4% C 0.208 H 275.8°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#3528B5
RGB	rgb(53, 40, 181)
HSL	hsl(246, 64%, 43%)
HSV	hsv(246, 78%, 71%)
CMYK	cmyk(70.7%, 77.9%, 0%, 29%)
CIE-LAB	lab(28.41, 49.00, -71.56)
CIE-LCH	lch(28.41, 86.73, 304.40°)
OKLab	oklab(40.43% 0.0211 -0.2069)
OKLCH	oklch(40.43% 0.208 275.8)
XYZ	xyz(10.5647, 5.6097, 44.2331)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3528B5 #A8B528

analogous

#2861B5 #3528B5 #7B28B5

triadic

#3528B5 #B53528 #28B535

tetradic

#3528B5 #B52861 #A8B528 #28B57B

square

#3528B5 #B52861 #A8B528 #28B57B

split-complementary

#3528B5 #B57B28 #61B528

monochromatic

#181251 #261D83 #3528B5 #5244D6 #8077E1

Accessibility & contrast

On white

9.90

#3528B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#3528B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3528B5

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3528B5	#FFFFFF	#000000	##FFFFFF
##3528B5	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)

#0049B9

Deuteranopia (green-blind)

#003DB3

Tritanopia (blue-blind)

#00526E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3528b5;
/* rgb */ color: rgb(53, 40, 181);
/* oklch */ color: oklch(40.4% 0.208 275.8);

Tailwind

colors: {
  custom: {
    50: '#8065cd',
    500: '#3528b5',
    950: '#000000',
  },
}

SCSS

$custom: #3528b5;
$custom-light: #8065cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3528b5",
  "rgb": {
    "r": 53,
    "g": 40,
    "b": 181
  },
  "hsl": {
    "h": 245.532,
    "s": 63.801,
    "l": 43.333
  },
  "oklch": {
    "l": 0.40428,
    "c": 0.20796,
    "h": 275.8
  },
  "luminance": 0.05611
}

Semantic roles & 50–950 ramp

primary

#3528B5

secondary

#C0C870

accent

#E741D8

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3528B5

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

Preview Lab → · Contrast checker → · Palette generator →