#424C8E#424C8E

#424C8E is a dark, moderate blue. Relative luminance 0.083; OKLCH L 44.2% C 0.108 H 274.6°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#424C8E
RGB	rgb(66, 76, 142)
HSL	hsl(232, 37%, 41%)
HSV	hsv(232, 54%, 56%)
CMYK	cmyk(53.5%, 46.5%, 0%, 44.3%)
CIE-LAB	lab(34.56, 15.83, -37.97)
CIE-LCH	lch(34.56, 41.14, 292.63°)
OKLab	oklab(44.18% 0.0087 -0.108)
OKLCH	oklch(44.18% 0.108 274.6)
XYZ	xyz(9.7121, 8.2795, 26.6723)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424C8E #8E8442

analogous

#42728E #424C8E #5E428E

triadic

#424C8E #8E424C #4C8E42

tetradic

#424C8E #8E4272 #8E8442 #428E5E

square

#424C8E #8E4272 #8E8442 #428E5E

split-complementary

#424C8E #8E5E42 #728E42

monochromatic

#1B1F3A #2F3664 #424C8E #5B66B3 #848DC6

Accessibility & contrast

On white

7.91

#424C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#424C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424C8E

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424C8E	#FFFFFF	#000000	##FFFFFF
##424C8E	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5590

Deuteranopia (green-blind)

#274E8D

Tritanopia (blue-blind)

#205A66

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #424c8e;
/* rgb */ color: rgb(66, 76, 142);
/* oklch */ color: oklch(44.2% 0.108 274.6);

Tailwind

colors: {
  custom: {
    50: '#7c7daf',
    500: '#424c8e',
    950: '#000000',
  },
}

SCSS

$custom: #424c8e;
$custom-light: #7c7daf;
$custom-dark: #000000;

JSON

{
  "hex": "#424c8e",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 142
  },
  "hsl": {
    "h": 232.105,
    "s": 36.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44182,
    "c": 0.10831,
    "h": 274.6
  },
  "luminance": 0.0828
}

Semantic roles & 50–950 ramp

primary

#424C8E

secondary

#B1AA7B

accent

#BE5BCD

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #424C8E

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

Preview Lab → · Contrast checker → · Palette generator →