#4239CA#4239CA

#4239CA is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.8% C 0.214 H 276.5°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#4239CA
RGB	rgb(66, 57, 202)
HSL	hsl(244, 58%, 51%)
HSV	hsv(244, 72%, 79%)
CMYK	cmyk(67.3%, 71.8%, 0%, 20.8%)
CIE-LAB	lab(34.70, 47.83, -73.52)
CIE-LCH	lch(34.70, 87.71, 303.05°)
OKLab	oklab(45.75% 0.0244 -0.2124)
OKLCH	oklch(45.75% 0.214 276.5)
XYZ	xyz(14.3671, 8.3475, 56.7198)
Luminance	0.0835 (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

#4239CA #C1CA39

analogous

#3978CA #4239CA #8A39CA

triadic

#4239CA #CA4239 #39CA42

tetradic

#4239CA #CA3978 #C1CA39 #39CA8A

square

#4239CA #CA3978 #C1CA39 #39CA8A

split-complementary

#4239CA #CA8A39 #78CA39

monochromatic

#221D6C #312A9C #4239CA #7069D7 #9E9AE4

Accessibility & contrast

On white

7.87

#4239CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#4239CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4239CA

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4239CA	#FFFFFF	#000000	##FFFFFF
##4239CA	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CE

Deuteranopia (green-blind)

#004BC7

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4239ca;
/* rgb */ color: rgb(66, 57, 202);
/* oklch */ color: oklch(45.8% 0.214 276.5);

Tailwind

colors: {
  custom: {
    50: '#8871db',
    500: '#4239ca',
    950: '#000000',
  },
}

SCSS

$custom: #4239ca;
$custom-light: #8871db;
$custom-dark: #000000;

JSON

{
  "hex": "#4239ca",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 202
  },
  "hsl": {
    "h": 243.724,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.4575,
    "c": 0.21378,
    "h": 276.5
  },
  "luminance": 0.08349
}

Semantic roles & 50–950 ramp

primary

#4239CA

secondary

#CCD08F

accent

#E147D7

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4239CA

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

Preview Lab → · Contrast checker → · Palette generator →