#427BBF#427BBF

#427BBF is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.6% C 0.121 H 254.1°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#427BBF
RGB	rgb(66, 123, 191)
HSL	hsl(213, 49%, 50%)
HSV	hsv(213, 65%, 75%)
CMYK	cmyk(65.4%, 35.6%, 0%, 25.1%)
CIE-LAB	lab(50.79, 3.10, -41.16)
CIE-LCH	lch(50.79, 41.28, 274.30°)
OKLab	oklab(57.61% -0.0332 -0.1168)
OKLCH	oklch(57.61% 0.121 254.1)
XYZ	xyz(18.7303, 19.0839, 51.9766)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BBF #BF8642

analogous

#42B9BF #427BBF #4742BF

triadic

#427BBF #BF427B #7BBF42

tetradic

#427BBF #BF42B9 #BF8642 #42BF47

square

#427BBF #BF42B9 #BF8642 #42BF47

split-complementary

#427BBF #BF4742 #B9BF42

monochromatic

#224065 #325E92 #427BBF #709BCE #9DBBDE

Accessibility & contrast

On white

4.36

#427BBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#427BBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BBF

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BBF	#FFFFFF	#000000	##000000
##427BBF	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7FC2

Deuteranopia (green-blind)

#4C74BE

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427bbf;
/* rgb */ color: rgb(66, 123, 191);
/* oklch */ color: oklch(57.6% 0.121 254.1);

Tailwind

colors: {
  custom: {
    50: '#83a0d2',
    500: '#427bbf',
    950: '#000000',
  },
}

SCSS

$custom: #427bbf;
$custom-light: #83a0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#427bbf",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 191
  },
  "hsl": {
    "h": 212.64,
    "s": 49.407,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5761,
    "c": 0.1214,
    "h": 254.1
  },
  "luminance": 0.19086
}

Semantic roles & 50–950 ramp

primary

#427BBF

secondary

#CAB193

accent

#9A4FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #427BBF

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

Preview Lab → · Contrast checker → · Palette generator →