#3531CF#3531CF

#3531CF is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.4% C 0.230 H 272.9°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#3531CF
RGB	rgb(53, 49, 207)
HSL	hsl(242, 62%, 50%)
HSV	hsv(242, 76%, 81%)
CMYK	cmyk(74.4%, 76.3%, 0%, 18.8%)
CIE-LAB	lab(32.83, 52.50, -79.54)
CIE-LCH	lch(32.83, 95.30, 303.43°)
OKLab	oklab(44.35% 0.0115 -0.2302)
OKLCH	oklch(44.35% 0.23 272.9)
XYZ	xyz(13.8252, 7.4571, 59.7301)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.84

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3531CF #CBCF31

analogous

#317CCF #3531CF #8431CF

triadic

#3531CF #CF3531 #31CF35

tetradic

#3531CF #CF317C #CBCF31 #31CF84

square

#3531CF #CF317C #CBCF31 #31CF84

split-complementary

#3531CF #CF8431 #7CCF31

monochromatic

#1B196C #28259E #3531CF #6663DB #9694E6

Accessibility & contrast

On white

8.43

#3531CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3531CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3531CF

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3531CF	#FFFFFF	#000000	##FFFFFF
##3531CF	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055D3

Deuteranopia (green-blind)

#0045CC

Tritanopia (blue-blind)

#00607F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3531cf;
/* rgb */ color: rgb(53, 49, 207);
/* oklch */ color: oklch(44.4% 0.230 272.9);

Tailwind

colors: {
  custom: {
    50: '#856cdf',
    500: '#3531cf',
    950: '#000000',
  },
}

SCSS

$custom: #3531cf;
$custom-light: #856cdf;
$custom-dark: #000000;

JSON

{
  "hex": "#3531cf",
  "rgb": {
    "r": 53,
    "g": 49,
    "b": 207
  },
  "hsl": {
    "h": 241.519,
    "s": 62.205,
    "l": 50.196
  },
  "oklch": {
    "l": 0.44354,
    "c": 0.23047,
    "h": 272.9
  },
  "luminance": 0.07459
}

Semantic roles & 50–950 ramp

primary

#3531CF

secondary

#CFD18B

accent

#E543E1

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3531CF

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

Preview Lab → · Contrast checker → · Palette generator →