#3C40CB#3C40CB

#3C40CB is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.5% C 0.209 H 273.5°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#3C40CB
RGB	rgb(60, 64, 203)
HSL	hsl(238, 58%, 52%)
HSV	hsv(238, 70%, 80%)
CMYK	cmyk(70.4%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(35.86, 43.45, -72.19)
CIE-LCH	lch(35.86, 84.26, 301.04°)
OKLab	oklab(46.51% 0.0127 -0.2087)
OKLCH	oklch(46.51% 0.209 273.5)
XYZ	xyz(14.4728, 8.9378, 57.4508)
Luminance	0.0894 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.68

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C40CB #CBC73C

analogous

#3C88CB #3C40CB #803CCB

triadic

#3C40CB #CB3C40 #40CB3C

tetradic

#3C40CB #CB3C88 #CBC73C #3CCB80

square

#3C40CB #CB3C88 #CBC73C #3CCB80

split-complementary

#3C40CB #CB803C #88CB3C

monochromatic

#1E206F #2A2E9F #3C40CB #6C6FD8 #9D9FE5

Accessibility & contrast

On white

7.53

#3C40CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3C40CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C40CB

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C40CB	#FFFFFF	#000000	##FFFFFF
##3C40CB	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCF

Deuteranopia (green-blind)

#004EC8

Tritanopia (blue-blind)

#006680

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3c40cb;
/* rgb */ color: rgb(60, 64, 203);
/* oklch */ color: oklch(46.5% 0.209 273.5);

Tailwind

colors: {
  custom: {
    50: '#8576dc',
    500: '#3c40cb',
    950: '#000000',
  },
}

SCSS

$custom: #3c40cb;
$custom-light: #8576dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3c40cb",
  "rgb": {
    "r": 60,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 238.322,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46514,
    "c": 0.20908,
    "h": 273.5
  },
  "luminance": 0.08939
}

Semantic roles & 50–950 ramp

primary

#3C40CB

secondary

#D1CF92

accent

#DD47E1

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3C40CB

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

Preview Lab → · Contrast checker → · Palette generator →