#424FBC#424FBC

#424FBC is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.2% C 0.170 H 273.1°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#424FBC
RGB	rgb(66, 79, 188)
HSL	hsl(234, 48%, 50%)
HSV	hsv(234, 65%, 74%)
CMYK	cmyk(64.9%, 58%, 0%, 26.3%)
CIE-LAB	lab(38.52, 29.81, -59.09)
CIE-LCH	lch(38.52, 66.18, 296.77°)
OKLab	oklab(48.17% 0.0091 -0.17)
OKLCH	oklch(48.17% 0.17 273.1)
XYZ	xyz(14.1168, 10.3798, 48.8268)
Luminance	0.1038 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FBC #BCAF42

analogous

#428CBC #424FBC #7242BC

triadic

#424FBC #BC424F #4FBC42

tetradic

#424FBC #BC428C #BCAF42 #42BC72

square

#424FBC #BC428C #BCAF42 #42BC72

split-complementary

#424FBC #BC7242 #8CBC42

monochromatic

#222961 #323C8F #424FBC #6F79CC #9CA3DC

Accessibility & contrast

On white

6.83

#424FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#424FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FBC

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FBC	#FFFFFF	#000000	##FFFFFF
##424FBC	1.00	6.83	3.08	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C0

Deuteranopia (green-blind)

#0055BA

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #424fbc;
/* rgb */ color: rgb(66, 79, 188);
/* oklch */ color: oklch(48.2% 0.170 273.1);

Tailwind

colors: {
  custom: {
    50: '#8480d1',
    500: '#424fbc',
    950: '#000000',
  },
}

SCSS

$custom: #424fbc;
$custom-light: #8480d1;
$custom-dark: #000000;

JSON

{
  "hex": "#424fbc",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 188
  },
  "hsl": {
    "h": 233.607,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.48166,
    "c": 0.17027,
    "h": 273.1
  },
  "luminance": 0.10381
}

Semantic roles & 50–950 ramp

primary

#424FBC

secondary

#C9C391

accent

#C950D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #424FBC

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

Preview Lab → · Contrast checker → · Palette generator →