#428499#428499

#428499 is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 57.9% C 0.074 H 221.2°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#428499
RGB	rgb(66, 132, 153)
HSL	hsl(194, 40%, 43%)
HSV	hsv(194, 57%, 60%)
CMYK	cmyk(56.9%, 13.7%, 0%, 40%)
CIE-LAB	lab(51.79, -14.72, -17.63)
CIE-LCH	lch(51.79, 22.97, 230.15°)
OKLab	oklab(57.85% -0.0559 -0.0489)
OKLCH	oklch(57.85% 0.074 221.2)
XYZ	xyz(16.2456, 19.9592, 33.1272)
Luminance	0.1996 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428499 #995742

analogous

#429982 #428499 #425899

triadic

#428499 #994284 #849942

tetradic

#428499 #824299 #995742 #589942

square

#428499 #824299 #995742 #589942

split-complementary

#428499 #994258 #998242

monochromatic

#1D3A43 #305F6E #428499 #5EA4BA #89BCCC

Accessibility & contrast

On white

4.21

#428499 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#428499 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428499

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428499	#FFFFFF	#000000	##000000
##428499	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#77819A

Deuteranopia (green-blind)

#6B7799

Tritanopia (blue-blind)

#008B8B

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #428499;
/* rgb */ color: rgb(66, 132, 153);
/* oklch */ color: oklch(57.9% 0.074 221.2);

Tailwind

colors: {
  custom: {
    50: '#7ea7b7',
    500: '#428499',
    950: '#000000',
  },
}

SCSS

$custom: #428499;
$custom-light: #7ea7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#428499",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 153
  },
  "hsl": {
    "h": 194.483,
    "s": 39.726,
    "l": 42.941
  },
  "oklch": {
    "l": 0.57852,
    "c": 0.07428,
    "h": 221.2
  },
  "luminance": 0.19961
}

Semantic roles & 50–950 ramp

primary

#428499

secondary

#B78D80

accent

#7558D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #428499

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

Preview Lab → · Contrast checker → · Palette generator →