#4239AE#4239AE

#4239AE is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.1% C 0.179 H 279.2°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#4239AE
RGB	rgb(66, 57, 174)
HSL	hsl(245, 51%, 45%)
HSV	hsv(245, 67%, 68%)
CMYK	cmyk(62.1%, 67.2%, 0%, 31.8%)
CIE-LAB	lab(32.12, 38.78, -61.24)
CIE-LCH	lch(32.12, 72.48, 302.34°)
OKLab	oklab(43.12% 0.0287 -0.1765)
OKLCH	oklch(43.12% 0.179 279.2)
XYZ	xyz(11.3474, 7.1396, 40.8163)
Luminance	0.0714 (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

#4239AE #A5AE39

analogous

#396BAE #4239AE #7C39AE

triadic

#4239AE #AE4239 #39AE42

tetradic

#4239AE #AE396B #A5AE39 #39AE7C

square

#4239AE #AE396B #A5AE39 #39AE7C

split-complementary

#4239AE #AE7C39 #6BAE39

monochromatic

#1F1B52 #312A80 #4239AE #635BC9 #8F89D8

Accessibility & contrast

On white

8.65

#4239AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#4239AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4239AE

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4239AE	#FFFFFF	#000000	##FFFFFF
##4239AE	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B2

Deuteranopia (green-blind)

#0047AC

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4239ae;
/* rgb */ color: rgb(66, 57, 174);
/* oklch */ color: oklch(43.1% 0.179 279.2);

Tailwind

colors: {
  custom: {
    50: '#8370c7',
    500: '#4239ae',
    950: '#000000',
  },
}

SCSS

$custom: #4239ae;
$custom-light: #8370c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4239ae",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 174
  },
  "hsl": {
    "h": 244.615,
    "s": 50.649,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43119,
    "c": 0.17879,
    "h": 279.2
  },
  "luminance": 0.0714
}

Semantic roles & 50–950 ramp

primary

#4239AE

secondary

#BDC380

accent

#DA4ECF

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4239AE

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

Preview Lab → · Contrast checker → · Palette generator →