#424F8A#424F8A

#424F8A is a dark, moderate blue. Relative luminance 0.086; OKLCH L 44.6% C 0.098 H 272.5°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#424F8A
RGB	rgb(66, 79, 138)
HSL	hsl(229, 35%, 40%)
HSV	hsv(229, 52%, 54%)
CMYK	cmyk(52.2%, 42.8%, 0%, 45.9%)
CIE-LAB	lab(35.17, 12.52, -34.55)
CIE-LCH	lch(35.17, 36.75, 289.91°)
OKLab	oklab(44.57% 0.0043 -0.0979)
OKLCH	oklch(44.57% 0.098 272.5)
XYZ	xyz(9.6287, 8.5846, 25.1894)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424F8A #8A7D42

analogous

#42738A #424F8A #59428A

triadic

#424F8A #8A424F #4F8A42

tetradic

#424F8A #8A4273 #8A7D42 #428A59

square

#424F8A #8A4273 #8A7D42 #428A59

split-complementary

#424F8A #8A5942 #738A42

monochromatic

#1A2037 #2E3761 #424F8A #5969B0 #838EC4

Accessibility & contrast

On white

7.73

#424F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#424F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424F8A

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424F8A	#FFFFFF	#000000	##FFFFFF
##424F8A	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37568C

Deuteranopia (green-blind)

#305089

Tritanopia (blue-blind)

#235C66

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #424f8a;
/* rgb */ color: rgb(66, 79, 138);
/* oklch */ color: oklch(44.6% 0.098 272.5);

Tailwind

colors: {
  custom: {
    50: '#7b80ac',
    500: '#424f8a',
    950: '#000000',
  },
}

SCSS

$custom: #424f8a;
$custom-light: #7b80ac;
$custom-dark: #000000;

JSON

{
  "hex": "#424f8a",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 138
  },
  "hsl": {
    "h": 229.167,
    "s": 35.294,
    "l": 40
  },
  "oklch": {
    "l": 0.44573,
    "c": 0.09799,
    "h": 272.5
  },
  "luminance": 0.08585
}

Semantic roles & 50–950 ramp

primary

#424F8A

secondary

#AEA579

accent

#B75CCB

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #424F8A

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

Preview Lab → · Contrast checker → · Palette generator →