#424FB1#424FB1

#424FB1 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.3% C 0.155 H 273.3°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#424FB1
RGB	rgb(66, 79, 177)
HSL	hsl(233, 46%, 48%)
HSV	hsv(233, 63%, 69%)
CMYK	cmyk(62.7%, 55.4%, 0%, 30.6%)
CIE-LAB	lab(37.70, 25.97, -53.93)
CIE-LCH	lch(37.70, 59.86, 295.71°)
OKLab	oklab(47.31% 0.0088 -0.1549)
OKLCH	oklch(47.31% 0.155 273.3)
XYZ	xyz(12.9759, 9.9235, 42.8181)
Luminance	0.0993 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FB1 #B1A442

analogous

#4286B1 #424FB1 #6C42B1

triadic

#424FB1 #B1424F #4FB142

tetradic

#424FB1 #B14286 #B1A442 #42B16C

square

#424FB1 #B14286 #B1A442 #42B16C

split-complementary

#424FB1 #B16C42 #86B142

monochromatic

#212758 #313B84 #424FB1 #6974C7 #969DD8

Accessibility & contrast

On white

7.04

#424FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#424FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424FB1

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FB1	#FFFFFF	#000000	##FFFFFF
##424FB1	1.00	7.04	2.99	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#025EB4

Deuteranopia (green-blind)

#0054AF

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #424fb1;
/* rgb */ color: rgb(66, 79, 177);
/* oklch */ color: oklch(47.3% 0.155 273.3);

Tailwind

colors: {
  custom: {
    50: '#8280c9',
    500: '#424fb1',
    950: '#000000',
  },
}

SCSS

$custom: #424fb1;
$custom-light: #8280c9;
$custom-dark: #000000;

JSON

{
  "hex": "#424fb1",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 177
  },
  "hsl": {
    "h": 232.973,
    "s": 45.679,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47305,
    "c": 0.15511,
    "h": 273.3
  },
  "luminance": 0.09925
}

Semantic roles & 50–950 ramp

primary

#424FB1

secondary

#C3BD8B

accent

#C652D5

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #424FB1

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

Preview Lab → · Contrast checker → · Palette generator →