#428797#428797

#428797 is a mid, moderate cyan. Relative luminance 0.207; OKLCH L 58.5% C 0.073 H 214.9°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#428797
RGB	rgb(66, 135, 151)
HSL	hsl(191, 39%, 43%)
HSV	hsv(191, 56%, 59%)
CMYK	cmyk(56.3%, 10.6%, 0%, 40.8%)
CIE-LAB	lab(52.64, -16.97, -15.18)
CIE-LCH	lch(52.64, 22.77, 221.81°)
OKLab	oklab(58.51% -0.0602 -0.042)
OKLCH	oklch(58.51% 0.073 214.9)
XYZ	xyz(16.4944, 20.7190, 32.4021)
Luminance	0.2072 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428797 #975242

analogous

#42977C #428797 #425C97

triadic

#428797 #974287 #879742

tetradic

#428797 #7C4297 #975242 #5C9742

square

#428797 #7C4297 #975242 #5C9742

split-complementary

#428797 #97425C #977C42

monochromatic

#1D3B42 #2F616C #428797 #5EA7B8 #88BFCB

Accessibility & contrast

On white

4.08

#428797 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#428797 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428797

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428797	#FFFFFF	#000000	##000000
##428797	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8398

Deuteranopia (green-blind)

#6F7997

Tritanopia (blue-blind)

#008D8C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #428797;
/* rgb */ color: rgb(66, 135, 151);
/* oklch */ color: oklch(58.5% 0.073 214.9);

Tailwind

colors: {
  custom: {
    50: '#7eaab5',
    500: '#428797',
    950: '#000000',
  },
}

SCSS

$custom: #428797;
$custom-light: #7eaab5;
$custom-dark: #000000;

JSON

{
  "hex": "#428797",
  "rgb": {
    "r": 66,
    "g": 135,
    "b": 151
  },
  "hsl": {
    "h": 191.294,
    "s": 39.171,
    "l": 42.549
  },
  "oklch": {
    "l": 0.58507,
    "c": 0.07343,
    "h": 214.9
  },
  "luminance": 0.20721
}

Semantic roles & 50–950 ramp

primary

#428797

secondary

#B6897F

accent

#6F59CF

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A1011

muted

#7C7F80

Preview Lab

Preview with #428797

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

Preview Lab → · Contrast checker → · Palette generator →