#3528B7#3528B7

#3528B7 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.6% C 0.210 H 275.6°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#3528B7
RGB	rgb(53, 40, 183)
HSL	hsl(245, 64%, 44%)
HSV	hsv(245, 78%, 72%)
CMYK	cmyk(71%, 78.1%, 0%, 28.2%)
CIE-LAB	lab(28.62, 49.62, -72.39)
CIE-LCH	lch(28.62, 87.77, 304.43°)
OKLab	oklab(40.64% 0.0206 -0.2093)
OKLCH	oklch(40.64% 0.21 275.6)
XYZ	xyz(10.7714, 5.6923, 45.3216)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3528B7 #AAB728

analogous

#2862B7 #3528B7 #7C28B7

triadic

#3528B7 #B73528 #28B735

tetradic

#3528B7 #B72862 #AAB728 #28B77C

square

#3528B7 #B72862 #AAB728 #28B77C

split-complementary

#3528B7 #B77C28 #62B728

monochromatic

#181253 #261D85 #3528B7 #5346D6 #8278E1

Accessibility & contrast

On white

9.82

#3528B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#3528B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3528B7

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3528B7	#FFFFFF	#000000	##FFFFFF
##3528B7	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABB

Deuteranopia (green-blind)

#003DB5

Tritanopia (blue-blind)

#00536F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3528b7;
/* rgb */ color: rgb(53, 40, 183);
/* oklch */ color: oklch(40.6% 0.210 275.6);

Tailwind

colors: {
  custom: {
    50: '#8065ce',
    500: '#3528b7',
    950: '#000000',
  },
}

SCSS

$custom: #3528b7;
$custom-light: #8065ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3528b7",
  "rgb": {
    "r": 53,
    "g": 40,
    "b": 183
  },
  "hsl": {
    "h": 245.455,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40644,
    "c": 0.21032,
    "h": 275.6
  },
  "luminance": 0.05693
}

Semantic roles & 50–950 ramp

primary

#3528B7

secondary

#C1C972

accent

#E741D8

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3528B7

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

Preview Lab → · Contrast checker → · Palette generator →