#4C40E3#4C40E3

#4C40E3 is a mid, highly saturated blue. Relative luminance 0.107; OKLCH L 49.8% C 0.234 H 276.9°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#4C40E3
RGB	rgb(76, 64, 227)
HSL	hsl(244, 74%, 57%)
HSV	hsv(244, 72%, 89%)
CMYK	cmyk(66.5%, 71.8%, 0%, 11%)
CIE-LAB	lab(39.15, 52.95, -80.55)
CIE-LCH	lch(39.15, 96.40, 303.32°)
OKLab	oklab(49.82% 0.0282 -0.2327)
OKLCH	oklch(49.82% 0.234 276.9)
XYZ	xyz(18.6745, 10.7477, 73.7485)
Luminance	0.1075 (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

#4C40E3 #D7E340

analogous

#4086E3 #4C40E3 #9D40E3

triadic

#4C40E3 #E34C40 #40E34C

tetradic

#4C40E3 #E34086 #D7E340 #40E39D

square

#4C40E3 #E34086 #D7E340 #40E39D

split-complementary

#4C40E3 #E39D40 #86E340

monochromatic

#1F1693 #2A1DC8 #4C40E3 #7E75EB #B0ABF3

Accessibility & contrast

On white

6.67

#4C40E3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#4C40E3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C40E3

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C40E3	#FFFFFF	#000000	##FFFFFF
##4C40E3	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063E8

Deuteranopia (green-blind)

#0055E0

Tritanopia (blue-blind)

#006E8E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4c40e3;
/* rgb */ color: rgb(76, 64, 227);
/* oklch */ color: oklch(49.8% 0.234 276.9);

Tailwind

colors: {
  custom: {
    50: '#9177ed',
    500: '#4c40e3',
    950: '#000000',
  },
}

SCSS

$custom: #4c40e3;
$custom-light: #9177ed;
$custom-dark: #000000;

JSON

{
  "hex": "#4c40e3",
  "rgb": {
    "r": 76,
    "g": 64,
    "b": 227
  },
  "hsl": {
    "h": 244.417,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.4982,
    "c": 0.23441,
    "h": 276.9
  },
  "luminance": 0.10749
}

Semantic roles & 50–950 ramp

primary

#4C40E3

secondary

#DCE19E

accent

#F137E3

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4C40E3

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

Preview Lab → · Contrast checker → · Palette generator →