#424BB8#424BB8

#424BB8 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.1% C 0.170 H 274.3°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#424BB8
RGB	rgb(66, 75, 184)
HSL	hsl(235, 47%, 49%)
HSV	hsv(235, 64%, 72%)
CMYK	cmyk(64.1%, 59.2%, 0%, 27.8%)
CIE-LAB	lab(37.21, 30.97, -58.87)
CIE-LCH	lch(37.21, 66.52, 297.75°)
OKLab	oklab(47.1% 0.0126 -0.1694)
OKLCH	oklch(47.1% 0.17 274.3)
XYZ	xyz(13.4117, 9.6500, 46.4940)
Luminance	0.0965 (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

#424BB8 #B8AF42

analogous

#4286B8 #424BB8 #7442B8

triadic

#424BB8 #B8424B #4BB842

tetradic

#424BB8 #B84286 #B8AF42 #42B874

square

#424BB8 #B84286 #B8AF42 #42B874

split-complementary

#424BB8 #B87442 #86B842

monochromatic

#22265E #32398B #424BB8 #6D74CB #9A9FDB

Accessibility & contrast

On white

7.17

#424BB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#424BB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424BB8

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424BB8	#FFFFFF	#000000	##FFFFFF
##424BB8	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBC

Deuteranopia (green-blind)

#0052B6

Tritanopia (blue-blind)

#00667A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #424bb8;
/* rgb */ color: rgb(66, 75, 184);
/* oklch */ color: oklch(47.1% 0.170 274.3);

Tailwind

colors: {
  custom: {
    50: '#837dce',
    500: '#424bb8',
    950: '#000000',
  },
}

SCSS

$custom: #424bb8;
$custom-light: #837dce;
$custom-dark: #000000;

JSON

{
  "hex": "#424bb8",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 184
  },
  "hsl": {
    "h": 235.424,
    "s": 47.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.47098,
    "c": 0.16989,
    "h": 274.3
  },
  "luminance": 0.09651
}

Semantic roles & 50–950 ramp

primary

#424BB8

secondary

#C7C28F

accent

#CD51D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #424BB8

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

Preview Lab → · Contrast checker → · Palette generator →