#3537BD#3537BD

#3537BD is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.3% C 0.203 H 273.3°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#3537BD
RGB	rgb(53, 55, 189)
HSL	hsl(239, 56%, 47%)
HSV	hsv(239, 72%, 74%)
CMYK	cmyk(72%, 70.9%, 0%, 25.9%)
CIE-LAB	lab(32.17, 43.30, -70.09)
CIE-LCH	lch(32.17, 82.38, 301.71°)
OKLab	oklab(43.34% 0.0118 -0.2027)
OKLCH	oklch(43.34% 0.203 273.3)
XYZ	xyz(12.0166, 7.1622, 48.8834)
Luminance	0.0716 (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

#3537BD #BDBB35

analogous

#357BBD #3537BD #7735BD

triadic

#3537BD #BD3537 #37BD35

tetradic

#3537BD #BD357B #BDBB35 #35BD77

square

#3537BD #BD357B #BDBB35 #35BD77

split-complementary

#3537BD #BD7735 #7BBD35

monochromatic

#1A1B5D #28298D #3537BD #5D5FD2 #8D8EDF

Accessibility & contrast

On white

8.63

#3537BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3537BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537BD

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537BD	#FFFFFF	#000000	##FFFFFF
##3537BD	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C1

Deuteranopia (green-blind)

#0045BB

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3537bd;
/* rgb */ color: rgb(53, 55, 189);
/* oklch */ color: oklch(43.3% 0.203 273.3);

Tailwind

colors: {
  custom: {
    50: '#806fd2',
    500: '#3537bd',
    950: '#000000',
  },
}

SCSS

$custom: #3537bd;
$custom-light: #806fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3537bd",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 189
  },
  "hsl": {
    "h": 239.118,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43344,
    "c": 0.20305,
    "h": 273.3
  },
  "luminance": 0.07163
}

Semantic roles & 50–950 ramp

primary

#3537BD

secondary

#CAC984

accent

#DD48DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3537BD

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

Preview Lab → · Contrast checker → · Palette generator →