#42505E#42505E

#42505E is a dark, muted cyan. Relative luminance 0.077; OKLCH L 42.5% C 0.029 H 248.5°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#42505E
RGB	rgb(66, 80, 94)
HSL	hsl(210, 18%, 31%)
HSV	hsv(210, 30%, 37%)
CMYK	cmyk(29.8%, 14.9%, 0%, 63.1%)
CIE-LAB	lab(33.36, -1.82, -9.98)
CIE-LCH	lch(33.36, 10.15, 259.64°)
OKLab	oklab(42.47% -0.0107 -0.0273)
OKLCH	oklch(42.47% 0.029 248.5)
XYZ	xyz(7.1352, 7.7035, 11.6985)
Luminance	0.0770 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42505E #5E5042

analogous

#425E5E #42505E #42425E

triadic

#42505E #5E4250 #505E42

tetradic

#42505E #5E425E #5E5042 #425E42

square

#42505E #5E425E #5E5042 #425E42

split-complementary

#42505E #5E4242 #5E5E42

monochromatic

#101316 #29313A #42505E #5B6F82 #798DA1

Accessibility & contrast

On white

8.27

#42505E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#42505E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42505E

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42505E	#FFFFFF	#000000	##FFFFFF
##42505E	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B505F

Deuteranopia (green-blind)

#474D5E

Tritanopia (blue-blind)

#3A5354

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #42505e;
/* rgb */ color: rgb(66, 80, 94);
/* oklch */ color: oklch(42.5% 0.029 248.5);

Tailwind

colors: {
  custom: {
    50: '#77818b',
    500: '#42505e',
    950: '#000000',
  },
}

SCSS

$custom: #42505e;
$custom-light: #77818b;
$custom-dark: #000000;

JSON

{
  "hex": "#42505e",
  "rgb": {
    "r": 66,
    "g": 80,
    "b": 94
  },
  "hsl": {
    "h": 210,
    "s": 17.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.4247,
    "c": 0.02935,
    "h": 248.5
  },
  "luminance": 0.07704
}

Semantic roles & 50–950 ramp

primary

#42505E

secondary

#8D7E6E

accent

#946EBA

background

#F7F7F8

surface

#EDEEF0

border

#C8C9CB

text

#080A0C

muted

#7B7C7D

Preview Lab

Preview with #42505E

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

Preview Lab → · Contrast checker → · Palette generator →