#424C5A#424C5A

#424C5A is a dark, muted blue. Relative luminance 0.071; OKLCH L 41.3% C 0.027 H 256.8°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#424C5A
RGB	rgb(66, 76, 90)
HSL	hsl(215, 15%, 31%)
HSV	hsv(215, 27%, 35%)
CMYK	cmyk(26.7%, 15.6%, 0%, 64.7%)
CIE-LAB	lab(31.95, -0.40, -9.56)
CIE-LCH	lch(31.95, 9.57, 267.60°)
OKLab	oklab(41.32% -0.0061 -0.0261)
OKLCH	oklch(41.32% 0.027 256.8)
XYZ	xyz(6.6762, 7.0651, 10.6828)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424C5A #5A5042

analogous

#42585A #424C5A #44425A

triadic

#424C5A #5A424C #4C5A42

tetradic

#424C5A #5A4258 #5A5042 #425A44

square

#424C5A #5A4258 #5A5042 #425A44

split-complementary

#424C5A #5A4442 #585A42

monochromatic

#0E1013 #282E37 #424C5A #5C6A7D #79889D

Accessibility & contrast

On white

8.70

#424C5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#424C5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424C5A

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424C5A	#FFFFFF	#000000	##FFFFFF
##424C5A	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474C5B

Deuteranopia (green-blind)

#454A5A

Tritanopia (blue-blind)

#3C4F51

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #424c5a;
/* rgb */ color: rgb(66, 76, 90);
/* oklch */ color: oklch(41.3% 0.027 256.8);

Tailwind

colors: {
  custom: {
    50: '#777e88',
    500: '#424c5a',
    950: '#000000',
  },
}

SCSS

$custom: #424c5a;
$custom-light: #777e88;
$custom-dark: #000000;

JSON

{
  "hex": "#424c5a",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 90
  },
  "hsl": {
    "h": 215,
    "s": 15.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.41316,
    "c": 0.02683,
    "h": 256.8
  },
  "luminance": 0.07065
}

Semantic roles & 50–950 ramp

primary

#424C5A

secondary

#897E6F

accent

#9A70B8

background

#F7F7F8

surface

#EDEEEF

border

#C8C9CA

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #424C5A

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

Preview Lab → · Contrast checker → · Palette generator →