#4C40CB#4C40CB

#4C40CB is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.6% C 0.205 H 279.0°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#4C40CB
RGB	rgb(76, 64, 203)
HSL	hsl(245, 57%, 52%)
HSV	hsv(245, 68%, 80%)
CMYK	cmyk(62.6%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(36.96, 45.44, -70.36)
CIE-LCH	lch(36.96, 83.76, 302.86°)
OKLab	oklab(47.58% 0.0323 -0.2029)
OKLCH	oklch(47.58% 0.205 279)
XYZ	xyz(15.5899, 9.5139, 57.5032)
Luminance	0.0951 (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

#4C40CB #BFCB40

analogous

#4079CB #4C40CB #9240CB

triadic

#4C40CB #CB4C40 #40CB4C

tetradic

#4C40CB #CB4079 #BFCB40 #40CB92

square

#4C40CB #CB4079 #BFCB40 #40CB92

split-complementary

#4C40CB #CB9240 #79CB40

monochromatic

#261F72 #362CA2 #4C40CB #7970D8 #A6A0E5

Accessibility & contrast

On white

7.23

#4C40CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#4C40CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C40CB

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C40CB	#FFFFFF	#000000	##FFFFFF
##4C40CB	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCF

Deuteranopia (green-blind)

#0051C8

Tritanopia (blue-blind)

#006580

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4c40cb;
/* rgb */ color: rgb(76, 64, 203);
/* oklch */ color: oklch(47.6% 0.205 279.0);

Tailwind

colors: {
  custom: {
    50: '#8c76dc',
    500: '#4c40cb',
    950: '#000000',
  },
}

SCSS

$custom: #4c40cb;
$custom-light: #8c76dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4c40cb",
  "rgb": {
    "r": 76,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 245.18,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.47583,
    "c": 0.20546,
    "h": 279
  },
  "luminance": 0.09515
}

Semantic roles & 50–950 ramp

primary

#4C40CB

secondary

#CCD295

accent

#E047D3

background

#F9F7FD

surface

#F2EDFB

border

#CCC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4C40CB

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

Preview Lab → · Contrast checker → · Palette generator →