#424FB9#424FB9

#424FB9 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.9% C 0.166 H 273.1°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#424FB9
RGB	rgb(66, 79, 185)
HSL	hsl(233, 47%, 49%)
HSV	hsv(233, 64%, 73%)
CMYK	cmyk(64.3%, 57.3%, 0%, 27.5%)
CIE-LAB	lab(38.29, 28.76, -57.70)
CIE-LCH	lch(38.29, 64.47, 296.50°)
OKLab	oklab(47.93% 0.0091 -0.1659)
OKLCH	oklch(47.93% 0.166 273.1)
XYZ	xyz(13.7968, 10.2518, 47.1413)
Luminance	0.1025 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FB9 #B9AC42

analogous

#428BB9 #424FB9 #7142B9

triadic

#424FB9 #B9424F #4FB942

tetradic

#424FB9 #B9428B #B9AC42 #42B971

square

#424FB9 #B9428B #B9AC42 #42B971

split-complementary

#424FB9 #B97142 #8BB942

monochromatic

#22285F #323C8C #424FB9 #6D77CB #9AA1DB

Accessibility & contrast

On white

6.88

#424FB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#424FB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FB9

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FB9	#FFFFFF	#000000	##FFFFFF
##424FB9	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BD

Deuteranopia (green-blind)

#0055B7

Tritanopia (blue-blind)

#00697C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #424fb9;
/* rgb */ color: rgb(66, 79, 185);
/* oklch */ color: oklch(47.9% 0.166 273.1);

Tailwind

colors: {
  custom: {
    50: '#8380cf',
    500: '#424fb9',
    950: '#000000',
  },
}

SCSS

$custom: #424fb9;
$custom-light: #8380cf;
$custom-dark: #000000;

JSON

{
  "hex": "#424fb9",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 185
  },
  "hsl": {
    "h": 233.445,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.47928,
    "c": 0.16618,
    "h": 273.1
  },
  "luminance": 0.10253
}

Semantic roles & 50–950 ramp

primary

#424FB9

secondary

#C7C190

accent

#C851D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #424FB9

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

Preview Lab → · Contrast checker → · Palette generator →