#424DBB#424DBB

#424DBB is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.7% C 0.171 H 273.6°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#424DBB
RGB	rgb(66, 77, 187)
HSL	hsl(235, 48%, 50%)
HSV	hsv(235, 65%, 73%)
CMYK	cmyk(64.7%, 58.8%, 0%, 26.7%)
CIE-LAB	lab(37.94, 30.73, -59.45)
CIE-LCH	lch(37.94, 66.92, 297.34°)
OKLab	oklab(47.71% 0.0109 -0.1711)
OKLCH	oklch(47.71% 0.171 273.6)
XYZ	xyz(13.8673, 10.0527, 48.2136)
Luminance	0.1005 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424DBB #BBB042

analogous

#428ABB #424DBB #7342BB

triadic

#424DBB #BB424D #4DBB42

tetradic

#424DBB #BB428A #BBB042 #42BB73

square

#424DBB #BB428A #BBB042 #42BB73

split-complementary

#424DBB #BB7342 #8ABB42

monochromatic

#222861 #323A8E #424DBB #6E77CC #9CA1DC

Accessibility & contrast

On white

6.97

#424DBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#424DBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424DBB

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424DBB	#FFFFFF	#000000	##FFFFFF
##424DBB	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBF

Deuteranopia (green-blind)

#0054B9

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #424dbb;
/* rgb */ color: rgb(66, 77, 187);
/* oklch */ color: oklch(47.7% 0.171 273.6);

Tailwind

colors: {
  custom: {
    50: '#847ed0',
    500: '#424dbb',
    950: '#000000',
  },
}

SCSS

$custom: #424dbb;
$custom-light: #847ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#424dbb",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 187
  },
  "hsl": {
    "h": 234.545,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.47712,
    "c": 0.17143,
    "h": 273.6
  },
  "luminance": 0.10054
}

Semantic roles & 50–950 ramp

primary

#424DBB

secondary

#C8C391

accent

#CB50D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #424DBB

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

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