#4239AF#4239AF

#4239AF is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.2% C 0.180 H 279.1°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#4239AF
RGB	rgb(66, 57, 175)
HSL	hsl(245, 51%, 45%)
HSV	hsv(245, 67%, 69%)
CMYK	cmyk(62.3%, 67.4%, 0%, 31.4%)
CIE-LAB	lab(32.21, 39.10, -61.69)
CIE-LCH	lch(32.21, 73.04, 302.37°)
OKLab	oklab(43.21% 0.0286 -0.1778)
OKLCH	oklch(43.21% 0.18 279.1)
XYZ	xyz(11.4453, 7.1788, 41.3316)
Luminance	0.0718 (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

#4239AF #A6AF39

analogous

#396BAF #4239AF #7D39AF

triadic

#4239AF #AF4239 #39AF42

tetradic

#4239AF #AF396B #A6AF39 #39AF7D

square

#4239AF #AF396B #A6AF39 #39AF7D

split-complementary

#4239AF #AF7D39 #6BAF39

monochromatic

#1F1B53 #312A81 #4239AF #645BCA #908AD9

Accessibility & contrast

On white

8.62

#4239AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#4239AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4239AF

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4239AF	#FFFFFF	#000000	##FFFFFF
##4239AF	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B3

Deuteranopia (green-blind)

#0047AD

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4239af;
/* rgb */ color: rgb(66, 57, 175);
/* oklch */ color: oklch(43.2% 0.180 279.1);

Tailwind

colors: {
  custom: {
    50: '#8370c8',
    500: '#4239af',
    950: '#000000',
  },
}

SCSS

$custom: #4239af;
$custom-light: #8370c8;
$custom-dark: #000000;

JSON

{
  "hex": "#4239af",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 175
  },
  "hsl": {
    "h": 244.576,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4321,
    "c": 0.18008,
    "h": 279.1
  },
  "luminance": 0.0718
}

Semantic roles & 50–950 ramp

primary

#4239AF

secondary

#BEC381

accent

#DA4DD0

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4239AF

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

Preview Lab → · Contrast checker → · Palette generator →