#3537BC#3537BC

#3537BC is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.2% C 0.202 H 273.4°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#3537BC
RGB	rgb(53, 55, 188)
HSL	hsl(239, 56%, 47%)
HSV	hsv(239, 72%, 74%)
CMYK	cmyk(71.8%, 70.7%, 0%, 26.3%)
CIE-LAB	lab(32.08, 42.97, -69.66)
CIE-LCH	lch(32.08, 81.84, 301.67°)
OKLab	oklab(43.25% 0.012 -0.2014)
OKLCH	oklch(43.25% 0.202 273.4)
XYZ	xyz(11.9085, 7.1189, 48.3137)
Luminance	0.0712 (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

#3537BC #BCBA35

analogous

#357BBC #3537BC #7635BC

triadic

#3537BC #BC3537 #37BC35

tetradic

#3537BC #BC357B #BCBA35 #35BC76

square

#3537BC #BC357B #BCBA35 #35BC76

split-complementary

#3537BC #BC7635 #7BBC35

monochromatic

#1A1B5D #28298C #3537BC #5D5FD1 #8D8EDF

Accessibility & contrast

On white

8.66

#3537BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3537BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537BC

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537BC	#FFFFFF	#000000	##FFFFFF
##3537BC	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C0

Deuteranopia (green-blind)

#0045BA

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3537bc;
/* rgb */ color: rgb(53, 55, 188);
/* oklch */ color: oklch(43.2% 0.202 273.4);

Tailwind

colors: {
  custom: {
    50: '#806fd1',
    500: '#3537bc',
    950: '#000000',
  },
}

SCSS

$custom: #3537bc;
$custom-light: #806fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3537bc",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 188
  },
  "hsl": {
    "h": 239.111,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.43245,
    "c": 0.2018,
    "h": 273.4
  },
  "luminance": 0.0712
}

Semantic roles & 50–950 ramp

primary

#3537BC

secondary

#C9C884

accent

#DD48DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3537BC

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

Preview Lab → · Contrast checker → · Palette generator →