#3537BE#3537BE

#3537BE is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.4% C 0.204 H 273.3°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#3537BE
RGB	rgb(53, 55, 190)
HSL	hsl(239, 56%, 48%)
HSV	hsv(239, 72%, 75%)
CMYK	cmyk(72.1%, 71.1%, 0%, 25.5%)
CIE-LAB	lab(32.27, 43.64, -70.51)
CIE-LCH	lch(32.27, 82.93, 301.75°)
OKLab	oklab(43.44% 0.0117 -0.2039)
OKLCH	oklch(43.44% 0.204 273.3)
XYZ	xyz(12.1255, 7.2058, 49.4570)
Luminance	0.0721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3537BE #BEBC35

analogous

#357CBE #3537BE #7735BE

triadic

#3537BE #BE3537 #37BE35

tetradic

#3537BE #BE357C #BEBC35 #35BE77

square

#3537BE #BE357C #BEBC35 #35BE77

split-complementary

#3537BE #BE7735 #7CBE35

monochromatic

#1A1B5E #28298E #3537BE #5E60D2 #8E8FDF

Accessibility & contrast

On white

8.60

#3537BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3537BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537BE

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537BE	#FFFFFF	#000000	##FFFFFF
##3537BE	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C2

Deuteranopia (green-blind)

#0045BC

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3537be;
/* rgb */ color: rgb(53, 55, 190);
/* oklch */ color: oklch(43.4% 0.204 273.3);

Tailwind

colors: {
  custom: {
    50: '#816fd3',
    500: '#3537be',
    950: '#000000',
  },
}

SCSS

$custom: #3537be;
$custom-light: #816fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3537be",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 190
  },
  "hsl": {
    "h": 239.124,
    "s": 56.379,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43444,
    "c": 0.20428,
    "h": 273.3
  },
  "luminance": 0.07207
}

Semantic roles & 50–950 ramp

primary

#3537BE

secondary

#CAC985

accent

#DD48E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3537BE

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

Preview Lab → · Contrast checker → · Palette generator →