#42637E#42637E

#42637E is a mid, muted cyan. Relative luminance 0.116; OKLCH L 48.6% C 0.058 H 244.1°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#42637E
RGB	rgb(66, 99, 126)
HSL	hsl(207, 31%, 38%)
HSV	hsv(207, 48%, 49%)
CMYK	cmyk(47.6%, 21.4%, 0%, 50.6%)
CIE-LAB	lab(40.55, -4.05, -18.81)
CIE-LCH	lch(40.55, 19.24, 257.84°)
OKLab	oklab(48.57% -0.0254 -0.0523)
OKLCH	oklch(48.57% 0.058 244.1)
XYZ	xyz(10.4732, 11.5876, 21.4194)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42637E #7E5D42

analogous

#427E7B #42637E #42457E

triadic

#42637E #7E4263 #637E42

tetradic

#42637E #7B427E #7E5D42 #457E42

square

#42637E #7B427E #7E5D42 #457E42

split-complementary

#42637E #7E4245 #7E7B42

monochromatic

#18242E #2D4356 #42637E #5783A6 #7FA0BC

Accessibility & contrast

On white

6.33

#42637E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#42637E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42637E

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42637E	#FFFFFF	#000000	##FFFFFF
##42637E	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58637F

Deuteranopia (green-blind)

#505D7E

Tritanopia (blue-blind)

#28696C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #42637e;
/* rgb */ color: rgb(66, 99, 126);
/* oklch */ color: oklch(48.6% 0.058 244.1);

Tailwind

colors: {
  custom: {
    50: '#7a8fa3',
    500: '#42637e',
    950: '#000000',
  },
}

SCSS

$custom: #42637e;
$custom-light: #7a8fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#42637e",
  "rgb": {
    "r": 66,
    "g": 99,
    "b": 126
  },
  "hsl": {
    "h": 207,
    "s": 31.25,
    "l": 37.647
  },
  "oklch": {
    "l": 0.48569,
    "c": 0.05813,
    "h": 244.1
  },
  "luminance": 0.11588
}

Semantic roles & 50–950 ramp

primary

#42637E

secondary

#A78B75

accent

#8F60C7

background

#F7F8FA

surface

#EEF0F3

border

#C9CBCD

text

#090C0F

muted

#7B7D7F

Preview Lab

Preview with #42637E

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

Preview Lab → · Contrast checker → · Palette generator →