#424EBB#424EBB

#424EBB is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.9% C 0.170 H 273.4°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#424EBB
RGB	rgb(66, 78, 187)
HSL	hsl(234, 48%, 50%)
HSV	hsv(234, 65%, 73%)
CMYK	cmyk(64.7%, 58.3%, 0%, 26.7%)
CIE-LAB	lab(38.19, 30.10, -59.04)
CIE-LCH	lch(38.19, 66.27, 297.01°)
OKLab	oklab(47.9% 0.01 -0.1699)
OKLCH	oklch(47.9% 0.17 273.4)
XYZ	xyz(13.9378, 10.1937, 48.2371)
Luminance	0.1019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EBB #BBAF42

analogous

#428ABB #424EBB #7342BB

triadic

#424EBB #BB424E #4EBB42

tetradic

#424EBB #BB428A #BBAF42 #42BB73

square

#424EBB #BB428A #BBAF42 #42BB73

split-complementary

#424EBB #BB7342 #8ABB42

monochromatic

#222861 #323B8E #424EBB #6E78CC #9CA2DC

Accessibility & contrast

On white

6.91

#424EBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#424EBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424EBB

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EBB	#FFFFFF	#000000	##FFFFFF
##424EBB	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBF

Deuteranopia (green-blind)

#0055B9

Tritanopia (blue-blind)

#00697D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #424ebb;
/* rgb */ color: rgb(66, 78, 187);
/* oklch */ color: oklch(47.9% 0.170 273.4);

Tailwind

colors: {
  custom: {
    50: '#847fd0',
    500: '#424ebb',
    950: '#000000',
  },
}

SCSS

$custom: #424ebb;
$custom-light: #847fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#424ebb",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 187
  },
  "hsl": {
    "h": 234.05,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.47899,
    "c": 0.17017,
    "h": 273.4
  },
  "luminance": 0.10195
}

Semantic roles & 50–950 ramp

primary

#424EBB

secondary

#C8C391

accent

#CA50D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #424EBB

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

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