#428397#428397

#428397 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.5% C 0.073 H 220.4°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#428397
RGB	rgb(66, 131, 151)
HSL	hsl(194, 39%, 43%)
HSV	hsv(194, 56%, 59%)
CMYK	cmyk(56.3%, 13.2%, 0%, 40.8%)
CIE-LAB	lab(51.41, -14.79, -17.05)
CIE-LCH	lch(51.41, 22.57, 229.07°)
OKLab	oklab(57.52% -0.0555 -0.0473)
OKLCH	oklch(57.52% 0.073 220.4)
XYZ	xyz(15.9468, 19.6238, 32.2195)
Luminance	0.1963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428397 #975642

analogous

#429781 #428397 #425897

triadic

#428397 #974283 #839742

tetradic

#428397 #814297 #975642 #589742

square

#428397 #814297 #975642 #589742

split-complementary

#428397 #974258 #978142

monochromatic

#1D3942 #2F5E6C #428397 #5EA3B8 #88BBCB

Accessibility & contrast

On white

4.26

#428397 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#428397 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428397

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428397	#FFFFFF	#000000	##000000
##428397	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778098

Deuteranopia (green-blind)

#6A7697

Tritanopia (blue-blind)

#008A89

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #428397;
/* rgb */ color: rgb(66, 131, 151);
/* oklch */ color: oklch(57.5% 0.073 220.4);

Tailwind

colors: {
  custom: {
    50: '#7ea7b5',
    500: '#428397',
    950: '#000000',
  },
}

SCSS

$custom: #428397;
$custom-light: #7ea7b5;
$custom-dark: #000000;

JSON

{
  "hex": "#428397",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 151
  },
  "hsl": {
    "h": 194.118,
    "s": 39.171,
    "l": 42.549
  },
  "oklch": {
    "l": 0.57522,
    "c": 0.07294,
    "h": 220.4
  },
  "luminance": 0.19625
}

Semantic roles & 50–950 ramp

primary

#428397

secondary

#B68C7F

accent

#7559CF

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #428397

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

Preview Lab → · Contrast checker → · Palette generator →