#428699#428699

#428699 is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.3% C 0.074 H 218.5°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#428699
RGB	rgb(66, 134, 153)
HSL	hsl(193, 40%, 43%)
HSV	hsv(193, 57%, 60%)
CMYK	cmyk(56.9%, 12.4%, 0%, 40%)
CIE-LAB	lab(52.41, -15.82, -16.70)
CIE-LCH	lch(52.41, 23.00, 226.55°)
OKLab	oklab(58.34% -0.0582 -0.0463)
OKLCH	oklch(58.34% 0.074 218.5)
XYZ	xyz(16.5194, 20.5068, 33.2185)
Luminance	0.2051 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428699 #995542

analogous

#429980 #428699 #425B99

triadic

#428699 #994286 #869942

tetradic

#428699 #804299 #995542 #5B9942

square

#428699 #804299 #995542 #5B9942

split-complementary

#428699 #99425B #998042

monochromatic

#1D3B43 #30616E #428699 #5EA6BA #89BECC

Accessibility & contrast

On white

4.12

#428699 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#428699 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428699

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428699	#FFFFFF	#000000	##000000
##428699	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A839A

Deuteranopia (green-blind)

#6D7999

Tritanopia (blue-blind)

#008D8C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428699;
/* rgb */ color: rgb(66, 134, 153);
/* oklch */ color: oklch(58.3% 0.074 218.5);

Tailwind

colors: {
  custom: {
    50: '#7ea9b7',
    500: '#428699',
    950: '#000000',
  },
}

SCSS

$custom: #428699;
$custom-light: #7ea9b7;
$custom-dark: #000000;

JSON

{
  "hex": "#428699",
  "rgb": {
    "r": 66,
    "g": 134,
    "b": 153
  },
  "hsl": {
    "h": 193.103,
    "s": 39.726,
    "l": 42.941
  },
  "oklch": {
    "l": 0.58343,
    "c": 0.07438,
    "h": 218.5
  },
  "luminance": 0.20508
}

Semantic roles & 50–950 ramp

primary

#428699

secondary

#B78C80

accent

#7258D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A1011

muted

#7C7F80

Preview Lab

Preview with #428699

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

Preview Lab → · Contrast checker → · Palette generator →