#4239C0#4239C0

#4239C0 is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.8% C 0.202 H 277.4°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#4239C0
RGB	rgb(66, 57, 192)
HSL	hsl(244, 54%, 49%)
HSV	hsv(244, 70%, 75%)
CMYK	cmyk(65.6%, 70.3%, 0%, 24.7%)
CIE-LAB	lab(33.75, 44.62, -69.22)
CIE-LCH	lch(33.75, 82.36, 302.81°)
OKLab	oklab(44.79% 0.0261 -0.1998)
OKLCH	oklch(44.79% 0.202 277.4)
XYZ	xyz(13.2212, 7.8892, 50.6850)
Luminance	0.0789 (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

#4239C0 #B7C039

analogous

#3974C0 #4239C0 #8639C0

triadic

#4239C0 #C04239 #39C042

tetradic

#4239C0 #C03974 #B7C039 #39C086

square

#4239C0 #C03974 #B7C039 #39C086

split-complementary

#4239C0 #C08639 #74C039

monochromatic

#221D62 #322B91 #4239C0 #6C65D1 #9994DF

Accessibility & contrast

On white

8.15

#4239C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#4239C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4239C0

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4239C0	#FFFFFF	#000000	##FFFFFF
##4239C0	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C4

Deuteranopia (green-blind)

#004ABD

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4239c0;
/* rgb */ color: rgb(66, 57, 192);
/* oklch */ color: oklch(44.8% 0.202 277.4);

Tailwind

colors: {
  custom: {
    50: '#8671d4',
    500: '#4239c0',
    950: '#000000',
  },
}

SCSS

$custom: #4239c0;
$custom-light: #8671d4;
$custom-dark: #000000;

JSON

{
  "hex": "#4239c0",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 192
  },
  "hsl": {
    "h": 244,
    "s": 54.217,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44789,
    "c": 0.20154,
    "h": 277.4
  },
  "luminance": 0.0789
}

Semantic roles & 50–950 ramp

primary

#4239C0

secondary

#C6CB8A

accent

#DE4AD4

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #4239C0

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

Preview Lab → · Contrast checker → · Palette generator →