#424FB7#424FB7

#424FB7 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.8% C 0.163 H 273.2°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#424FB7
RGB	rgb(66, 79, 183)
HSL	hsl(233, 47%, 49%)
HSV	hsv(233, 64%, 72%)
CMYK	cmyk(63.9%, 56.8%, 0%, 28.2%)
CIE-LAB	lab(38.14, 28.07, -56.76)
CIE-LCH	lch(38.14, 63.32, 296.31°)
OKLab	oklab(47.77% 0.009 -0.1632)
OKLCH	oklch(47.77% 0.163 273.2)
XYZ	xyz(13.5872, 10.1680, 46.0372)
Luminance	0.1017 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FB7 #B7AA42

analogous

#428AB7 #424FB7 #7042B7

triadic

#424FB7 #B7424F #4FB742

tetradic

#424FB7 #B7428A #B7AA42 #42B770

square

#424FB7 #B7428A #B7AA42 #42B770

split-complementary

#424FB7 #B77042 #8AB742

monochromatic

#22285D #323C8A #424FB7 #6C77CA #99A0DA

Accessibility & contrast

On white

6.92

#424FB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#424FB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FB7

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FB7	#FFFFFF	#000000	##FFFFFF
##424FB7	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBB

Deuteranopia (green-blind)

#0055B5

Tritanopia (blue-blind)

#00687B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #424fb7;
/* rgb */ color: rgb(66, 79, 183);
/* oklch */ color: oklch(47.8% 0.163 273.2);

Tailwind

colors: {
  custom: {
    50: '#8380cd',
    500: '#424fb7',
    950: '#000000',
  },
}

SCSS

$custom: #424fb7;
$custom-light: #8380cd;
$custom-dark: #000000;

JSON

{
  "hex": "#424fb7",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 183
  },
  "hsl": {
    "h": 233.333,
    "s": 46.988,
    "l": 48.824
  },
  "oklch": {
    "l": 0.4777,
    "c": 0.16343,
    "h": 273.2
  },
  "luminance": 0.10169
}

Semantic roles & 50–950 ramp

primary

#424FB7

secondary

#C6C08F

accent

#C851D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #424FB7

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

Preview Lab → · Contrast checker → · Palette generator →