#424CA4#424CA4

#424CA4 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.7% C 0.141 H 274.5°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#424CA4
RGB	rgb(66, 76, 164)
HSL	hsl(234, 43%, 45%)
HSV	hsv(234, 60%, 64%)
CMYK	cmyk(59.8%, 53.7%, 0%, 35.7%)
CIE-LAB	lab(36.00, 23.39, -48.96)
CIE-LCH	lch(36.00, 54.26, 295.53°)
OKLab	oklab(45.73% 0.0111 -0.1403)
OKLCH	oklch(45.73% 0.141 274.5)
XYZ	xyz(11.5299, 9.0066, 36.2456)
Luminance	0.0901 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424CA4 #A49A42

analogous

#427DA4 #424CA4 #6942A4

triadic

#424CA4 #A4424C #4CA442

tetradic

#424CA4 #A4427D #A49A42 #42A469

square

#424CA4 #A4427D #A49A42 #42A469

split-complementary

#424CA4 #A46942 #7DA442

monochromatic

#1F244D #303878 #424CA4 #636CC0 #8F95D2

Accessibility & contrast

On white

7.50

#424CA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#424CA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424CA4

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424CA4	#FFFFFF	#000000	##FFFFFF
##424CA4	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1759A7

Deuteranopia (green-blind)

#0051A2

Tritanopia (blue-blind)

#006070

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #424ca4;
/* rgb */ color: rgb(66, 76, 164);
/* oklch */ color: oklch(45.7% 0.141 274.5);

Tailwind

colors: {
  custom: {
    50: '#807dc0',
    500: '#424ca4',
    950: '#000000',
  },
}

SCSS

$custom: #424ca4;
$custom-light: #807dc0;
$custom-dark: #000000;

JSON

{
  "hex": "#424ca4",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 164
  },
  "hsl": {
    "h": 233.878,
    "s": 42.609,
    "l": 45.098
  },
  "oklch": {
    "l": 0.45732,
    "c": 0.1407,
    "h": 274.5
  },
  "luminance": 0.09007
}

Semantic roles & 50–950 ramp

primary

#424CA4

secondary

#BDB785

accent

#C655D2

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #424CA4

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

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