#424B83#424B83

#424B83 is a dark, moderate blue. Relative luminance 0.078; OKLCH L 43.3% C 0.093 H 274.9°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#424B83
RGB	rgb(66, 75, 131)
HSL	hsl(232, 33%, 39%)
HSV	hsv(232, 50%, 51%)
CMYK	cmyk(49.6%, 42.7%, 0%, 48.6%)
CIE-LAB	lab(33.62, 12.80, -32.71)
CIE-LCH	lch(33.62, 35.12, 291.37°)
OKLab	oklab(43.26% 0.008 -0.0925)
OKLCH	oklch(43.26% 0.093 274.9)
XYZ	xyz(8.8583, 7.8286, 22.5126)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424B83 #837A42

analogous

#426B83 #424B83 #594283

triadic

#424B83 #83424B #4B8342

tetradic

#424B83 #83426B #837A42 #428359

square

#424B83 #83426B #837A42 #428359

split-complementary

#424B83 #835942 #6B8342

monochromatic

#191C32 #2D345A #424B83 #5863AB #8089BF

Accessibility & contrast

On white

8.18

#424B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#424B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424B83

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424B83	#FFFFFF	#000000	##FFFFFF
##424B83	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355285

Deuteranopia (green-blind)

#2F4D82

Tritanopia (blue-blind)

#295760

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #424b83;
/* rgb */ color: rgb(66, 75, 131);
/* oklch */ color: oklch(43.3% 0.093 274.9);

Tailwind

colors: {
  custom: {
    50: '#7a7da7',
    500: '#424b83',
    950: '#000000',
  },
}

SCSS

$custom: #424b83;
$custom-light: #7a7da7;
$custom-dark: #000000;

JSON

{
  "hex": "#424b83",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 131
  },
  "hsl": {
    "h": 231.692,
    "s": 32.995,
    "l": 38.627
  },
  "oklch": {
    "l": 0.43256,
    "c": 0.09289,
    "h": 274.9
  },
  "luminance": 0.07829
}

Semantic roles & 50–950 ramp

primary

#424B83

secondary

#AAA377

accent

#BA5FC9

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#09090F

muted

#7B7B7F

Preview Lab

Preview with #424B83

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

Preview Lab → · Contrast checker → · Palette generator →