#4239C3#4239C3

#4239C3 is a mid, highly saturated blue. Relative luminance 0.080; OKLCH L 45.1% C 0.205 H 277.2°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#4239C3
RGB	rgb(66, 57, 195)
HSL	hsl(244, 55%, 49%)
HSV	hsv(244, 71%, 76%)
CMYK	cmyk(66.2%, 70.8%, 0%, 23.5%)
CIE-LAB	lab(34.03, 45.59, -70.52)
CIE-LCH	lch(34.03, 83.97, 302.88°)
OKLab	oklab(45.08% 0.0256 -0.2036)
OKLCH	oklch(45.08% 0.205 277.2)
XYZ	xyz(13.5570, 8.0235, 52.4534)
Luminance	0.0803 (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

#4239C3 #BAC339

analogous

#3975C3 #4239C3 #8739C3

triadic

#4239C3 #C34239 #39C342

tetradic

#4239C3 #C33975 #BAC339 #39C387

square

#4239C3 #C33975 #BAC339 #39C387

split-complementary

#4239C3 #C38739 #75C339

monochromatic

#221D64 #322B94 #4239C3 #6E67D2 #9B96E0

Accessibility & contrast

On white

8.06

#4239C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#4239C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4239C3

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4239C3	#FFFFFF	#000000	##FFFFFF
##4239C3	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C7

Deuteranopia (green-blind)

#004AC0

Tritanopia (blue-blind)

#005F7A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4239c3;
/* rgb */ color: rgb(66, 57, 195);
/* oklch */ color: oklch(45.1% 0.205 277.2);

Tailwind

colors: {
  custom: {
    50: '#8771d6',
    500: '#4239c3',
    950: '#000000',
  },
}

SCSS

$custom: #4239c3;
$custom-light: #8771d6;
$custom-dark: #000000;

JSON

{
  "hex": "#4239c3",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 195
  },
  "hsl": {
    "h": 243.913,
    "s": 54.762,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45075,
    "c": 0.20525,
    "h": 277.2
  },
  "luminance": 0.08025
}

Semantic roles & 50–950 ramp

primary

#4239C3

secondary

#C8CC8C

accent

#DE4AD4

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0814

muted

#7E7B83

Preview Lab

Preview with #4239C3

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

Preview Lab → · Contrast checker → · Palette generator →