#427AA3#427AA3

#427AA3 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.9% C 0.087 H 242.3°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#427AA3
RGB	rgb(66, 122, 163)
HSL	hsl(205, 42%, 45%)
HSV	hsv(205, 60%, 64%)
CMYK	cmyk(59.5%, 25.2%, 0%, 36.1%)
CIE-LAB	lab(49.16, -5.83, -27.52)
CIE-LCH	lch(49.16, 28.13, 258.03°)
OKLab	oklab(55.89% -0.0405 -0.0772)
OKLCH	oklch(55.89% 0.087 242.3)
XYZ	xyz(15.8147, 17.7202, 37.2302)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AA3 #A36B42

analogous

#42A39C #427AA3 #4249A3

triadic

#427AA3 #A3427A #7AA342

tetradic

#427AA3 #9C42A3 #A36B42 #49A342

square

#427AA3 #9C42A3 #A36B42 #49A342

split-complementary

#427AA3 #A34249 #A39C42

monochromatic

#1F394C #305977 #427AA3 #6398C0 #8EB5D1

Accessibility & contrast

On white

4.62

#427AA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#427AA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #427AA3

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AA3	#FFFFFF	#000000	##FFFFFF
##427AA3	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687AA5

Deuteranopia (green-blind)

#5B70A2

Tritanopia (blue-blind)

#008488

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #427aa3;
/* rgb */ color: rgb(66, 122, 163);
/* oklch */ color: oklch(55.9% 0.087 242.3);

Tailwind

colors: {
  custom: {
    50: '#7fa0be',
    500: '#427aa3',
    950: '#000000',
  },
}

SCSS

$custom: #427aa3;
$custom-light: #7fa0be;
$custom-dark: #000000;

JSON

{
  "hex": "#427aa3",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 163
  },
  "hsl": {
    "h": 205.361,
    "s": 42.358,
    "l": 44.902
  },
  "oklch": {
    "l": 0.5589,
    "c": 0.08717,
    "h": 242.3
  },
  "luminance": 0.17722
}

Semantic roles & 50–950 ramp

primary

#427AA3

secondary

#BC9C84

accent

#8A56D2

background

#F8F9FB

surface

#EFF2F6

border

#CACCD0

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #427AA3

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

Preview Lab → · Contrast checker → · Palette generator →