#427EB4#427EB4

#427EB4 is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.7% C 0.105 H 247.8°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#427EB4
RGB	rgb(66, 126, 180)
HSL	hsl(208, 46%, 48%)
HSV	hsv(208, 63%, 71%)
CMYK	cmyk(63.3%, 30%, 0%, 29.4%)
CIE-LAB	lab(51.12, -2.49, -34.31)
CIE-LCH	lch(51.12, 34.40, 265.85°)
OKLab	oklab(57.7% -0.0395 -0.0968)
OKLCH	oklch(57.7% 0.105 247.8)
XYZ	xyz(17.9428, 19.3735, 45.9650)
Luminance	0.1938 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427EB4 #B47842

analogous

#42B4B1 #427EB4 #4245B4

triadic

#427EB4 #B4427E #7EB442

tetradic

#427EB4 #B142B4 #B47842 #45B442

square

#427EB4 #B142B4 #B47842 #45B442

split-complementary

#427EB4 #B44245 #B4B142

monochromatic

#213F5A #325F87 #427EB4 #6B9CC9 #97BAD9

Accessibility & contrast

On white

4.31

#427EB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#427EB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427EB4

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427EB4	#FFFFFF	#000000	##000000
##427EB4	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6780B6

Deuteranopia (green-blind)

#5775B3

Tritanopia (blue-blind)

#008B91

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427eb4;
/* rgb */ color: rgb(66, 126, 180);
/* oklch */ color: oklch(57.7% 0.105 247.8);

Tailwind

colors: {
  custom: {
    50: '#81a3ca',
    500: '#427eb4',
    950: '#000000',
  },
}

SCSS

$custom: #427eb4;
$custom-light: #81a3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#427eb4",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 180
  },
  "hsl": {
    "h": 208.421,
    "s": 46.341,
    "l": 48.235
  },
  "oklch": {
    "l": 0.57696,
    "c": 0.10453,
    "h": 247.8
  },
  "luminance": 0.19375
}

Semantic roles & 50–950 ramp

primary

#427EB4

secondary

#C5A78D

accent

#9052D6

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #427EB4

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

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