#427FA3#427FA3

#427FA3 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.1% C 0.084 H 236.7°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#427FA3
RGB	rgb(66, 127, 163)
HSL	hsl(202, 42%, 45%)
HSV	hsv(202, 60%, 64%)
CMYK	cmyk(59.5%, 22.1%, 0%, 36.1%)
CIE-LAB	lab(50.66, -8.73, -25.18)
CIE-LCH	lch(50.66, 26.65, 250.87°)
OKLab	oklab(57.08% -0.0463 -0.0704)
OKLCH	oklch(57.08% 0.084 236.7)
XYZ	xyz(16.4445, 18.9798, 37.4401)
Luminance	0.1898 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FA3 #A36642

analogous

#42A396 #427FA3 #424FA3

triadic

#427FA3 #A3427F #7FA342

tetradic

#427FA3 #9642A3 #A36642 #4FA342

square

#427FA3 #9642A3 #A36642 #4FA342

split-complementary

#427FA3 #A3424F #A39642

monochromatic

#1F3B4C #305D77 #427FA3 #639DC0 #8EB8D1

Accessibility & contrast

On white

4.38

#427FA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#427FA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FA3

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FA3	#FFFFFF	#000000	##000000
##427FA3	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7EA5

Deuteranopia (green-blind)

#6174A2

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427fa3;
/* rgb */ color: rgb(66, 127, 163);
/* oklch */ color: oklch(57.1% 0.084 236.7);

Tailwind

colors: {
  custom: {
    50: '#7fa4be',
    500: '#427fa3',
    950: '#000000',
  },
}

SCSS

$custom: #427fa3;
$custom-light: #7fa4be;
$custom-dark: #000000;

JSON

{
  "hex": "#427fa3",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 163
  },
  "hsl": {
    "h": 202.268,
    "s": 42.358,
    "l": 44.902
  },
  "oklch": {
    "l": 0.57085,
    "c": 0.08426,
    "h": 236.7
  },
  "luminance": 0.18981
}

Semantic roles & 50–950 ramp

primary

#427FA3

secondary

#BC9984

accent

#8456D2

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #427FA3

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

Preview Lab → · Contrast checker → · Palette generator →