#427E8A#427E8A

#427E8A is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.8% C 0.065 H 212.2°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX#427E8A
RGBrgb(66, 126, 138)
HSLhsl(190, 35%, 40%)
HSVhsv(190, 52%, 54%)
CMYKcmyk(52.2%, 8.7%, 0%, 45.9%)
CIE-LABlab(49.39, -15.97, -12.51)
CIE-LCHlch(49.39, 20.29, 218.07°)
OKLaboklab(55.75% -0.0549 -0.0345)
OKLCHoklch(55.75% 0.065 212.2)
XYZxyz(14.2933, 17.9137, 26.7443)
Luminance0.1792 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#427E8A #8A4E42
analogous
#428A72 #427E8A #425A8A
triadic
#427E8A #8A427E #7E8A42
tetradic
#427E8A #72428A #8A4E42 #5A8A42
square
#427E8A #72428A #8A4E42 #5A8A42
split-complementary
#427E8A #8A425A #8A7242
monochromatic
#1A3237 #2E5861 #427E8A #59A1B0 #83B9C4

Accessibility & contrast

On white

4.58
#427E8A on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.58
#427E8A on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427E8A
4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##427E8A#FFFFFF#000000##000000
##427E8A1.004.584.584.58
#FFFFFF4.581.0021.0021.00
#0000004.5821.001.001.00
##0000004.5821.001.001.00

Color blindness preview

Protanopia (red-blind)
#747A8B
Deuteranopia (green-blind)
#69728A
Tritanopia (blue-blind)
#148382
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #427e8a;
/* rgb */ color: rgb(66, 126, 138);
/* oklch */ color: oklch(55.8% 0.065 212.2);
Tailwind
colors: {
  custom: {
    50: '#7ca3ac',
    500: '#427e8a',
    950: '#000000',
  },
}
SCSS
$custom: #427e8a;
$custom-light: #7ca3ac;
$custom-dark: #000000;
JSON
{
  "hex": "#427e8a",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 138
  },
  "hsl": {
    "h": 190,
    "s": 35.294,
    "l": 40
  },
  "oklch": {
    "l": 0.55751,
    "c": 0.06491,
    "h": 212.2
  },
  "luminance": 0.17915
}

Semantic roles & 50–950 ramp

primary
#427E8A
secondary
#AE8279
accent
#6F5CCB
background
#F7FAFA
surface
#EEF3F4
border
#C9CDCE
text
#0A0F10
muted
#7C7F7F

Preview Lab

Preview with #427E8A

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

Preview Lab → · Contrast checker → · Palette generator →

#427E8A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva