#424BB5#424BB5

#424BB5 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.9% C 0.166 H 274.4°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#424BB5
RGB	rgb(66, 75, 181)
HSL	hsl(235, 47%, 48%)
HSV	hsv(235, 64%, 71%)
CMYK	cmyk(63.5%, 58.6%, 0%, 29%)
CIE-LAB	lab(36.98, 29.93, -57.48)
CIE-LCH	lch(36.98, 64.80, 297.51°)
OKLab	oklab(46.86% 0.0127 -0.1653)
OKLCH	oklch(46.86% 0.166 274.4)
XYZ	xyz(13.1006, 9.5255, 44.8553)
Luminance	0.0953 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424BB5 #B5AC42

analogous

#4284B5 #424BB5 #7242B5

triadic

#424BB5 #B5424B #4BB542

tetradic

#424BB5 #B54284 #B5AC42 #42B572

square

#424BB5 #B54284 #B5AC42 #42B572

split-complementary

#424BB5 #B57242 #84B542

monochromatic

#21265B #323888 #424BB5 #6B72C9 #989DD9

Accessibility & contrast

On white

7.23

#424BB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#424BB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424BB5

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424BB5	#FFFFFF	#000000	##FFFFFF
##424BB5	1.00	7.23	2.91	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB9

Deuteranopia (green-blind)

#0052B3

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #424bb5;
/* rgb */ color: rgb(66, 75, 181);
/* oklch */ color: oklch(46.9% 0.166 274.4);

Tailwind

colors: {
  custom: {
    50: '#837dcc',
    500: '#424bb5',
    950: '#000000',
  },
}

SCSS

$custom: #424bb5;
$custom-light: #837dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#424bb5",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 181
  },
  "hsl": {
    "h": 235.304,
    "s": 46.559,
    "l": 48.431
  },
  "oklch": {
    "l": 0.46856,
    "c": 0.1658,
    "h": 274.4
  },
  "luminance": 0.09527
}

Semantic roles & 50–950 ramp

primary

#424BB5

secondary

#C5C18E

accent

#CC52D6

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #424BB5

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

Preview Lab → · Contrast checker → · Palette generator →