#3539BC#3539BC

#3539BC is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.6% C 0.200 H 273.1°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#3539BC
RGB	rgb(53, 57, 188)
HSL	hsl(238, 56%, 47%)
HSV	hsv(238, 72%, 74%)
CMYK	cmyk(71.8%, 69.7%, 0%, 26.3%)
CIE-LAB	lab(32.51, 41.78, -68.94)
CIE-LCH	lch(32.51, 80.62, 301.22°)
OKLab	oklab(43.56% 0.0108 -0.1994)
OKLCH	oklch(43.56% 0.2 273.1)
XYZ	xyz(12.0054, 7.3128, 48.3460)
Luminance	0.0731 (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

#3539BC #BCB835

analogous

#357DBC #3539BC #7435BC

triadic

#3539BC #BC3539 #39BC35

tetradic

#3539BC #BC357D #BCB835 #35BC74

square

#3539BC #BC357D #BCB835 #35BC74

split-complementary

#3539BC #BC7435 #7DBC35

monochromatic

#1A1C5D #282B8C #3539BC #5D60D1 #8D8FDF

Accessibility & contrast

On white

8.53

#3539BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3539BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3539BC

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3539BC	#FFFFFF	#000000	##FFFFFF
##3539BC	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C0

Deuteranopia (green-blind)

#0046BA

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3539bc;
/* rgb */ color: rgb(53, 57, 188);
/* oklch */ color: oklch(43.6% 0.200 273.1);

Tailwind

colors: {
  custom: {
    50: '#8070d1',
    500: '#3539bc',
    950: '#000000',
  },
}

SCSS

$custom: #3539bc;
$custom-light: #8070d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3539bc",
  "rgb": {
    "r": 53,
    "g": 57,
    "b": 188
  },
  "hsl": {
    "h": 238.222,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.43556,
    "c": 0.19966,
    "h": 273.1
  },
  "luminance": 0.07314
}

Semantic roles & 50–950 ramp

primary

#3539BC

secondary

#C9C784

accent

#DB48DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3539BC

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

Preview Lab → · Contrast checker → · Palette generator →