#3537A4#3537A4

#3537A4 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.9% C 0.171 H 275.0°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#3537A4
RGB	rgb(53, 55, 164)
HSL	hsl(239, 51%, 43%)
HSV	hsv(239, 68%, 64%)
CMYK	cmyk(67.7%, 66.5%, 0%, 35.7%)
CIE-LAB	lab(29.83, 34.75, -59.02)
CIE-LCH	lch(29.83, 68.49, 300.49°)
OKLab	oklab(40.94% 0.0149 -0.1703)
OKLCH	oklch(40.94% 0.171 275)
XYZ	xyz(9.5330, 6.1687, 35.8031)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.50

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3537A4 #A4A235

analogous

#356EA4 #3537A4 #6B35A4

triadic

#3537A4 #A43537 #37A435

tetradic

#3537A4 #A4356E #A4A235 #35A46B

square

#3537A4 #A4356E #A4A235 #35A46B

split-complementary

#3537A4 #A46B35 #6EA435

monochromatic

#171847 #262776 #3537A4 #5052C6 #7E80D5

Accessibility & contrast

On white

9.40

#3537A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3537A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537A4

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537A4	#FFFFFF	#000000	##FFFFFF
##3537A4	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA7

Deuteranopia (green-blind)

#0041A2

Tritanopia (blue-blind)

#005368

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3537a4;
/* rgb */ color: rgb(53, 55, 164);
/* oklch */ color: oklch(40.9% 0.171 275.0);

Tailwind

colors: {
  custom: {
    50: '#7b6ec0',
    500: '#3537a4',
    950: '#000000',
  },
}

SCSS

$custom: #3537a4;
$custom-light: #7b6ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#3537a4",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 164
  },
  "hsl": {
    "h": 238.919,
    "s": 51.152,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40943,
    "c": 0.17099,
    "h": 275
  },
  "luminance": 0.0617
}

Semantic roles & 50–950 ramp

primary

#3537A4

secondary

#BEBD76

accent

#D84DDB

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3537A4

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

Preview Lab → · Contrast checker → · Palette generator →