#427CAB#427CAB

#427CAB is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.095 H 245.1°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#427CAB
RGB	rgb(66, 124, 171)
HSL	hsl(207, 44%, 46%)
HSV	hsv(207, 61%, 67%)
CMYK	cmyk(61.4%, 27.5%, 0%, 32.9%)
CIE-LAB	lab(50.11, -4.35, -30.68)
CIE-LCH	lch(50.11, 30.99, 261.94°)
OKLab	oklab(56.76% -0.0401 -0.0863)
OKLCH	oklch(56.76% 0.095 245.1)
XYZ	xyz(16.8024, 18.5122, 41.2079)
Luminance	0.1851 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CAB #AB7142

analogous

#42ABA6 #427CAB #4248AB

triadic

#427CAB #AB427C #7CAB42

tetradic

#427CAB #A642AB #AB7142 #48AB42

square

#427CAB #A642AB #AB7142 #48AB42

split-complementary

#427CAB #AB4248 #ABA642

monochromatic

#203C53 #315C7F #427CAB #669AC4 #92B7D5

Accessibility & contrast

On white

4.47

#427CAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#427CAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CAB

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CAB	#FFFFFF	#000000	##000000
##427CAB	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677DAD

Deuteranopia (green-blind)

#5973AA

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #427cab;
/* rgb */ color: rgb(66, 124, 171);
/* oklch */ color: oklch(56.8% 0.095 245.1);

Tailwind

colors: {
  custom: {
    50: '#80a1c4',
    500: '#427cab',
    950: '#000000',
  },
}

SCSS

$custom: #427cab;
$custom-light: #80a1c4;
$custom-dark: #000000;

JSON

{
  "hex": "#427cab",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 171
  },
  "hsl": {
    "h": 206.857,
    "s": 44.304,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56763,
    "c": 0.09517,
    "h": 245.1
  },
  "luminance": 0.18514
}

Semantic roles & 50–950 ramp

primary

#427CAB

secondary

#C0A188

accent

#8D54D4

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F12

muted

#7C7E81

Preview Lab

Preview with #427CAB

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

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