#424DB1#424DB1

#424DB1 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.9% C 0.158 H 273.9°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#424DB1
RGB	rgb(66, 77, 177)
HSL	hsl(234, 46%, 48%)
HSV	hsv(234, 63%, 69%)
CMYK	cmyk(62.7%, 56.5%, 0%, 30.6%)
CIE-LAB	lab(37.19, 27.26, -54.77)
CIE-LCH	lch(37.19, 61.18, 296.46°)
OKLab	oklab(46.92% 0.0107 -0.1573)
OKLCH	oklch(46.92% 0.158 273.9)
XYZ	xyz(12.8338, 9.6393, 42.7707)
Luminance	0.0964 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424DB1 #B1A642

analogous

#4284B1 #424DB1 #6E42B1

triadic

#424DB1 #B1424D #4DB142

tetradic

#424DB1 #B14284 #B1A642 #42B16E

square

#424DB1 #B14284 #B1A642 #42B16E

split-complementary

#424DB1 #B16E42 #84B142

monochromatic

#212658 #313A84 #424DB1 #6972C7 #969CD8

Accessibility & contrast

On white

7.17

#424DB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#424DB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424DB1

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424DB1	#FFFFFF	#000000	##FFFFFF
##424DB1	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB4

Deuteranopia (green-blind)

#0053AF

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #424db1;
/* rgb */ color: rgb(66, 77, 177);
/* oklch */ color: oklch(46.9% 0.158 273.9);

Tailwind

colors: {
  custom: {
    50: '#827ec9',
    500: '#424db1',
    950: '#000000',
  },
}

SCSS

$custom: #424db1;
$custom-light: #827ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#424db1",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 177
  },
  "hsl": {
    "h": 234.054,
    "s": 45.679,
    "l": 47.647
  },
  "oklch": {
    "l": 0.46918,
    "c": 0.15772,
    "h": 273.9
  },
  "luminance": 0.0964
}

Semantic roles & 50–950 ramp

primary

#424DB1

secondary

#C3BE8B

accent

#C852D5

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #424DB1

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

Preview Lab → · Contrast checker → · Palette generator →