#427BC0#427BC0

#427BC0 is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.7% C 0.123 H 254.4°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#427BC0
RGB	rgb(66, 123, 192)
HSL	hsl(213, 50%, 51%)
HSV	hsv(213, 66%, 75%)
CMYK	cmyk(65.6%, 35.9%, 0%, 24.7%)
CIE-LAB	lab(50.84, 3.44, -41.65)
CIE-LCH	lch(50.84, 41.79, 274.73°)
OKLab	oklab(57.67% -0.0329 -0.1182)
OKLCH	oklch(57.67% 0.123 254.4)
XYZ	xyz(18.8407, 19.1281, 52.5581)
Luminance	0.1913 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BC0 #C08742

analogous

#42BAC0 #427BC0 #4842C0

triadic

#427BC0 #C0427B #7BC042

tetradic

#427BC0 #C042BA #C08742 #42C048

square

#427BC0 #C042BA #C08742 #42C048

split-complementary

#427BC0 #C04842 #BAC042

monochromatic

#224166 #315E94 #427BC0 #709BCF #9EBBDF

Accessibility & contrast

On white

4.35

#427BC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#427BC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BC0

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BC0	#FFFFFF	#000000	##000000
##427BC0	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D80C3

Deuteranopia (green-blind)

#4B74BF

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427bc0;
/* rgb */ color: rgb(66, 123, 192);
/* oklch */ color: oklch(57.7% 0.123 254.4);

Tailwind

colors: {
  custom: {
    50: '#83a0d3',
    500: '#427bc0',
    950: '#000000',
  },
}

SCSS

$custom: #427bc0;
$custom-light: #83a0d3;
$custom-dark: #000000;

JSON

{
  "hex": "#427bc0",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 192
  },
  "hsl": {
    "h": 212.857,
    "s": 50,
    "l": 50.588
  },
  "oklch": {
    "l": 0.57667,
    "c": 0.12272,
    "h": 254.4
  },
  "luminance": 0.1913
}

Semantic roles & 50–950 ramp

primary

#427BC0

secondary

#CBB293

accent

#9B4EDA

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #427BC0

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

Preview Lab → · Contrast checker → · Palette generator →