#428CC2#428CC2

#428CC2 is a mid, moderate cyan. Relative luminance 0.238; OKLCH L 61.7% C 0.110 H 243.1°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#428CC2
RGB	rgb(66, 140, 194)
HSL	hsl(205, 51%, 51%)
HSV	hsv(205, 66%, 76%)
CMYK	cmyk(66%, 27.8%, 0%, 23.9%)
CIE-LAB	lab(55.89, -5.91, -34.84)
CIE-LCH	lch(55.89, 35.34, 260.38°)
OKLab	oklab(61.67% -0.0499 -0.0982)
OKLCH	oklch(61.67% 0.11 243.1)
XYZ	xyz(21.3588, 23.8073, 54.4981)
Luminance	0.2381 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428CC2 #C27842

analogous

#42C2B8 #428CC2 #424CC2

triadic

#428CC2 #C2428C #8CC242

tetradic

#428CC2 #B842C2 #C27842 #4CC242

square

#428CC2 #B842C2 #C27842 #4CC242

split-complementary

#428CC2 #C2424C #C2B842

monochromatic

#224A68 #316B96 #428CC2 #70A8D1 #9FC4E0

Accessibility & contrast

On white

3.64

#428CC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#428CC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428CC2

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428CC2	#FFFFFF	#000000	##000000
##428CC2	1.00	3.64	5.76	5.76
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#748DC4

Deuteranopia (green-blind)

#6280C1

Tritanopia (blue-blind)

#00999F

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #428cc2;
/* rgb */ color: rgb(66, 140, 194);
/* oklch */ color: oklch(61.7% 0.110 243.1);

Tailwind

colors: {
  custom: {
    50: '#83add4',
    500: '#428cc2',
    950: '#000000',
  },
}

SCSS

$custom: #428cc2;
$custom-light: #83add4;
$custom-dark: #000000;

JSON

{
  "hex": "#428cc2",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 194
  },
  "hsl": {
    "h": 205.313,
    "s": 51.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.61673,
    "c": 0.11016,
    "h": 243.1
  },
  "luminance": 0.23809
}

Semantic roles & 50–950 ramp

primary

#428CC2

secondary

#CCAB94

accent

#894DDB

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #428CC2

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

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