#3B42CC#3B42CC

#3B42CC is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 46.9% C 0.208 H 272.8°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#3B42CC
RGB	rgb(59, 66, 204)
HSL	hsl(237, 59%, 52%)
HSV	hsv(237, 71%, 80%)
CMYK	cmyk(71.1%, 67.6%, 0%, 20%)
CIE-LAB	lab(36.34, 42.48, -72.00)
CIE-LCH	lch(36.34, 83.59, 300.54°)
OKLab	oklab(46.87% 0.0103 -0.2081)
OKLCH	oklch(46.87% 0.208 272.8)
XYZ	xyz(14.6473, 9.1844, 58.1159)
Luminance	0.0919 (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

#3B42CC #CCC53B

analogous

#3B8BCC #3B42CC #7C3BCC

triadic

#3B42CC #CC3B42 #42CC3B

tetradic

#3B42CC #CC3B8B #CCC53B #3BCC7C

square

#3B42CC #CC3B8B #CCC53B #3BCC7C

split-complementary

#3B42CC #CC7C3B #8BCC3B

monochromatic

#1D2170 #2A2FA0 #3B42CC #6C71D9 #9CA0E5

Accessibility & contrast

On white

7.40

#3B42CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#3B42CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B42CC

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B42CC	#FFFFFF	#000000	##FFFFFF
##3B42CC	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD0

Deuteranopia (green-blind)

#004FC9

Tritanopia (blue-blind)

#006782

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3b42cc;
/* rgb */ color: rgb(59, 66, 204);
/* oklch */ color: oklch(46.9% 0.208 272.8);

Tailwind

colors: {
  custom: {
    50: '#8577dd',
    500: '#3b42cc',
    950: '#000000',
  },
}

SCSS

$custom: #3b42cc;
$custom-light: #8577dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3b42cc",
  "rgb": {
    "r": 59,
    "g": 66,
    "b": 204
  },
  "hsl": {
    "h": 237.103,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46868,
    "c": 0.20839,
    "h": 272.8
  },
  "luminance": 0.09186
}

Semantic roles & 50–950 ramp

primary

#3B42CC

secondary

#D1CE92

accent

#DA46E2

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3B42CC

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

Preview Lab → · Contrast checker → · Palette generator →