#3B43CB#3B43CB

#3B43CB is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 46.9% C 0.206 H 272.7°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#3B43CB
RGB	rgb(59, 67, 203)
HSL	hsl(237, 58%, 51%)
HSV	hsv(237, 71%, 80%)
CMYK	cmyk(70.9%, 67%, 0%, 20.4%)
CIE-LAB	lab(36.47, 41.53, -71.20)
CIE-LCH	lch(36.47, 82.43, 300.26°)
OKLab	oklab(46.94% 0.0098 -0.2058)
OKLCH	oklch(46.94% 0.206 272.7)
XYZ	xyz(14.5867, 9.2545, 57.5059)
Luminance	0.0926 (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

#3B43CB #CBC33B

analogous

#3B8BCB #3B43CB #7B3BCB

triadic

#3B43CB #CB3B43 #43CB3B

tetradic

#3B43CB #CB3B8B #CBC33B #3BCB7B

square

#3B43CB #CB3B8B #CBC33B #3BCB7B

split-complementary

#3B43CB #CB7B3B #8BCB3B

monochromatic

#1D226E #2A319F #3B43CB #6B71D8 #9CA0E5

Accessibility & contrast

On white

7.37

#3B43CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#3B43CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B43CB

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B43CB	#FFFFFF	#000000	##FFFFFF
##3B43CB	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCF

Deuteranopia (green-blind)

#004FC8

Tritanopia (blue-blind)

#006781

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3b43cb;
/* rgb */ color: rgb(59, 67, 203);
/* oklch */ color: oklch(46.9% 0.206 272.7);

Tailwind

colors: {
  custom: {
    50: '#8578dc',
    500: '#3b43cb',
    950: '#000000',
  },
}

SCSS

$custom: #3b43cb;
$custom-light: #8578dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b43cb",
  "rgb": {
    "r": 59,
    "g": 67,
    "b": 203
  },
  "hsl": {
    "h": 236.667,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.46936,
    "c": 0.20603,
    "h": 272.7
  },
  "luminance": 0.09256
}

Semantic roles & 50–950 ramp

primary

#3B43CB

secondary

#D1CD91

accent

#D947E1

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3B43CB

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

Preview Lab → · Contrast checker → · Palette generator →