#424BA3#424BA3

#424BA3 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.5% C 0.141 H 274.9°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#424BA3
RGB	rgb(66, 75, 163)
HSL	hsl(234, 42%, 45%)
HSV	hsv(234, 60%, 64%)
CMYK	cmyk(59.5%, 54%, 0%, 36.1%)
CIE-LAB	lab(35.66, 23.69, -48.90)
CIE-LCH	lch(35.66, 54.34, 295.85°)
OKLab	oklab(45.46% 0.0121 -0.1401)
OKLCH	oklch(45.46% 0.141 274.9)
XYZ	xyz(11.3716, 8.8339, 35.7491)
Luminance	0.0883 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424BA3 #A39A42

analogous

#427CA3 #424BA3 #6A42A3

triadic

#424BA3 #A3424B #4BA342

tetradic

#424BA3 #A3427C #A39A42 #42A36A

square

#424BA3 #A3427C #A39A42 #42A36A

split-complementary

#424BA3 #A36A42 #7CA342

monochromatic

#1F234C #303777 #424BA3 #636BC0 #8E94D1

Accessibility & contrast

On white

7.59

#424BA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#424BA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424BA3

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424BA3	#FFFFFF	#000000	##FFFFFF
##424BA3	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1558A6

Deuteranopia (green-blind)

#0050A1

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #424ba3;
/* rgb */ color: rgb(66, 75, 163);
/* oklch */ color: oklch(45.5% 0.141 274.9);

Tailwind

colors: {
  custom: {
    50: '#7f7dbf',
    500: '#424ba3',
    950: '#000000',
  },
}

SCSS

$custom: #424ba3;
$custom-light: #7f7dbf;
$custom-dark: #000000;

JSON

{
  "hex": "#424ba3",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 163
  },
  "hsl": {
    "h": 234.433,
    "s": 42.358,
    "l": 44.902
  },
  "oklch": {
    "l": 0.45459,
    "c": 0.14062,
    "h": 274.9
  },
  "luminance": 0.08835
}

Semantic roles & 50–950 ramp

primary

#424BA3

secondary

#BCB784

accent

#C756D2

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #424BA3

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

Preview Lab → · Contrast checker → · Palette generator →