#427CBF#427CBF

#427CBF is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.8% C 0.120 H 253.5°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#427CBF
RGB	rgb(66, 124, 191)
HSL	hsl(212, 49%, 50%)
HSV	hsv(212, 65%, 75%)
CMYK	cmyk(65.4%, 35.1%, 0%, 25.1%)
CIE-LAB	lab(51.07, 2.49, -40.70)
CIE-LCH	lch(51.07, 40.78, 273.50°)
OKLab	oklab(57.84% -0.0342 -0.1154)
OKLCH	oklch(57.84% 0.12 253.5)
XYZ	xyz(18.8550, 19.3333, 52.0181)
Luminance	0.1933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CBF #BF8542

analogous

#42BABF #427CBF #4642BF

triadic

#427CBF #BF427C #7CBF42

tetradic

#427CBF #BF42BA #BF8542 #42BF46

square

#427CBF #BF42BA #BF8542 #42BF46

split-complementary

#427CBF #BF4642 #BABF42

monochromatic

#224165 #325E92 #427CBF #709CCE #9DBBDE

Accessibility & contrast

On white

4.31

#427CBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#427CBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CBF

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CBF	#FFFFFF	#000000	##000000
##427CBF	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F80C2

Deuteranopia (green-blind)

#4D74BE

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427cbf;
/* rgb */ color: rgb(66, 124, 191);
/* oklch */ color: oklch(57.8% 0.120 253.5);

Tailwind

colors: {
  custom: {
    50: '#83a1d2',
    500: '#427cbf',
    950: '#000000',
  },
}

SCSS

$custom: #427cbf;
$custom-light: #83a1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#427cbf",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 191
  },
  "hsl": {
    "h": 212.16,
    "s": 49.407,
    "l": 50.392
  },
  "oklch": {
    "l": 0.57836,
    "c": 0.12039,
    "h": 253.5
  },
  "luminance": 0.19335
}

Semantic roles & 50–950 ramp

primary

#427CBF

secondary

#CAB093

accent

#994FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #427CBF

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

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