#427C8A#427C8A

#427C8A is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.3% C 0.064 H 215.3°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#427C8A
RGB	rgb(66, 124, 138)
HSL	hsl(192, 35%, 40%)
HSV	hsv(192, 52%, 54%)
CMYK	cmyk(52.2%, 10.1%, 0%, 45.9%)
CIE-LAB	lab(48.77, -14.87, -13.45)
CIE-LCH	lch(48.77, 20.05, 222.13°)
OKLab	oklab(55.25% -0.0525 -0.0372)
OKLCH	oklch(55.25% 0.064 215.3)
XYZ	xyz(14.0401, 17.4073, 26.6599)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427C8A #8A5042

analogous

#428A74 #427C8A #42588A

triadic

#427C8A #8A427C #7C8A42

tetradic

#427C8A #74428A #8A5042 #588A42

square

#427C8A #74428A #8A5042 #588A42

split-complementary

#427C8A #8A4258 #8A7442

monochromatic

#1A3237 #2E5761 #427C8A #599FB0 #83B7C4

Accessibility & contrast

On white

4.69

#427C8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#427C8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #427C8A

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427C8A	#FFFFFF	#000000	##FFFFFF
##427C8A	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#72798B

Deuteranopia (green-blind)

#67708A

Tritanopia (blue-blind)

#158180

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #427c8a;
/* rgb */ color: rgb(66, 124, 138);
/* oklch */ color: oklch(55.3% 0.064 215.3);

Tailwind

colors: {
  custom: {
    50: '#7ca2ac',
    500: '#427c8a',
    950: '#000000',
  },
}

SCSS

$custom: #427c8a;
$custom-light: #7ca2ac;
$custom-dark: #000000;

JSON

{
  "hex": "#427c8a",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 138
  },
  "hsl": {
    "h": 191.667,
    "s": 35.294,
    "l": 40
  },
  "oklch": {
    "l": 0.55253,
    "c": 0.06433,
    "h": 215.3
  },
  "luminance": 0.17409
}

Semantic roles & 50–950 ramp

primary

#427C8A

secondary

#AE8479

accent

#725CCB

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#0A0F10

muted

#7C7E7F

Preview Lab

Preview with #427C8A

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

Preview Lab → · Contrast checker → · Palette generator →