#427FBF#427FBF

#427FBF is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.5% C 0.117 H 251.5°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#427FBF
RGB	rgb(66, 127, 191)
HSL	hsl(211, 49%, 50%)
HSV	hsv(211, 65%, 75%)
CMYK	cmyk(65.4%, 33.5%, 0%, 25.1%)
CIE-LAB	lab(51.95, 0.69, -39.33)
CIE-LCH	lch(51.95, 39.33, 271.01°)
OKLab	oklab(58.52% -0.0373 -0.1114)
OKLCH	oklch(58.52% 0.117 251.5)
XYZ	xyz(19.2367, 20.0967, 52.1454)
Luminance	0.2010 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FBF #BF8242

analogous

#42BDBF #427FBF #4342BF

triadic

#427FBF #BF427F #7FBF42

tetradic

#427FBF #BF42BD #BF8242 #42BF43

square

#427FBF #BF42BD #BF8242 #42BF43

split-complementary

#427FBF #BF4342 #BDBF42

monochromatic

#224365 #326192 #427FBF #709ECE #9DBDDE

Accessibility & contrast

On white

4.18

#427FBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#427FBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FBF

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FBF	#FFFFFF	#000000	##000000
##427FBF	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6382C2

Deuteranopia (green-blind)

#5276BE

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427fbf;
/* rgb */ color: rgb(66, 127, 191);
/* oklch */ color: oklch(58.5% 0.117 251.5);

Tailwind

colors: {
  custom: {
    50: '#83a3d2',
    500: '#427fbf',
    950: '#000000',
  },
}

SCSS

$custom: #427fbf;
$custom-light: #83a3d2;
$custom-dark: #000000;

JSON

{
  "hex": "#427fbf",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 191
  },
  "hsl": {
    "h": 210.72,
    "s": 49.407,
    "l": 50.392
  },
  "oklch": {
    "l": 0.58519,
    "c": 0.11747,
    "h": 251.5
  },
  "luminance": 0.20099
}

Semantic roles & 50–950 ramp

primary

#427FBF

secondary

#CAAF93

accent

#964FD9

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #427FBF

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

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