#424EB1#424EB1

#424EB1 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.1% C 0.156 H 273.6°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#424EB1
RGB	rgb(66, 78, 177)
HSL	hsl(234, 46%, 48%)
HSV	hsv(234, 63%, 69%)
CMYK	cmyk(62.7%, 55.9%, 0%, 30.6%)
CIE-LAB	lab(37.45, 26.61, -54.35)
CIE-LCH	lch(37.45, 60.52, 296.09°)
OKLab	oklab(47.11% 0.0098 -0.1561)
OKLCH	oklch(47.11% 0.156 273.6)
XYZ	xyz(12.9043, 9.7803, 42.7942)
Luminance	0.0978 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EB1 #B1A542

analogous

#4285B1 #424EB1 #6E42B1

triadic

#424EB1 #B1424E #4EB142

tetradic

#424EB1 #B14285 #B1A542 #42B16E

square

#424EB1 #B14285 #B1A542 #42B16E

split-complementary

#424EB1 #B16E42 #85B142

monochromatic

#212758 #313A84 #424EB1 #6973C7 #969DD8

Accessibility & contrast

On white

7.10

#424EB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#424EB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424EB1

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EB1	#FFFFFF	#000000	##FFFFFF
##424EB1	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB4

Deuteranopia (green-blind)

#0053AF

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #424eb1;
/* rgb */ color: rgb(66, 78, 177);
/* oklch */ color: oklch(47.1% 0.156 273.6);

Tailwind

colors: {
  custom: {
    50: '#827fc9',
    500: '#424eb1',
    950: '#000000',
  },
}

SCSS

$custom: #424eb1;
$custom-light: #827fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#424eb1",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 177
  },
  "hsl": {
    "h": 233.514,
    "s": 45.679,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47111,
    "c": 0.15642,
    "h": 273.6
  },
  "luminance": 0.09781
}

Semantic roles & 50–950 ramp

primary

#424EB1

secondary

#C3BD8B

accent

#C752D5

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #424EB1

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

Preview Lab → · Contrast checker → · Palette generator →