#424B8E#424B8E

#424B8E is a dark, moderate blue. Relative luminance 0.081; OKLCH L 44.0% C 0.110 H 275.2°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#424B8E
RGB	rgb(66, 75, 142)
HSL	hsl(233, 37%, 41%)
HSV	hsv(233, 54%, 56%)
CMYK	cmyk(53.5%, 47.2%, 0%, 44.3%)
CIE-LAB	lab(34.28, 16.49, -38.42)
CIE-LCH	lch(34.28, 41.81, 293.23°)
OKLab	oklab(43.97% 0.0099 -0.1093)
OKLCH	oklch(43.97% 0.11 275.2)
XYZ	xyz(9.6438, 8.1428, 26.6495)
Luminance	0.0814 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424B8E #8E8542

analogous

#42718E #424B8E #5F428E

triadic

#424B8E #8E424B #4B8E42

tetradic

#424B8E #8E4271 #8E8542 #428E5F

square

#424B8E #8E4271 #8E8542 #428E5F

split-complementary

#424B8E #8E5F42 #718E42

monochromatic

#1B1F3A #2F3564 #424B8E #5B65B3 #848CC6

Accessibility & contrast

On white

7.99

#424B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#424B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424B8E

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424B8E	#FFFFFF	#000000	##FFFFFF
##424B8E	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5490

Deuteranopia (green-blind)

#254E8D

Tritanopia (blue-blind)

#205A65

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #424b8e;
/* rgb */ color: rgb(66, 75, 142);
/* oklch */ color: oklch(44.0% 0.110 275.2);

Tailwind

colors: {
  custom: {
    50: '#7c7daf',
    500: '#424b8e',
    950: '#000000',
  },
}

SCSS

$custom: #424b8e;
$custom-light: #7c7daf;
$custom-dark: #000000;

JSON

{
  "hex": "#424b8e",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 142
  },
  "hsl": {
    "h": 232.895,
    "s": 36.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.43969,
    "c": 0.10973,
    "h": 275.2
  },
  "luminance": 0.08143
}

Semantic roles & 50–950 ramp

primary

#424B8E

secondary

#B1AA7B

accent

#BF5BCD

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #424B8E

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

Preview Lab → · Contrast checker → · Palette generator →