#427D99#427D99

#427D99 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.1% C 0.075 H 230.7°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#427D99
RGB	rgb(66, 125, 153)
HSL	hsl(199, 40%, 43%)
HSV	hsv(199, 57%, 60%)
CMYK	cmyk(56.9%, 18.3%, 0%, 40%)
CIE-LAB	lab(49.65, -10.80, -20.92)
CIE-LCH	lch(49.65, 23.54, 242.69°)
OKLab	oklab(56.14% -0.0477 -0.0582)
OKLCH	oklch(56.14% 0.075 230.7)
XYZ	xyz(15.3280, 18.1240, 32.8213)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427D99 #995E42

analogous

#429989 #427D99 #425299

triadic

#427D99 #99427D #7D9942

tetradic

#427D99 #894299 #995E42 #529942

square

#427D99 #894299 #995E42 #529942

split-complementary

#427D99 #994252 #998942

monochromatic

#1D3743 #305A6E #427D99 #5E9CBA #89B7CC

Accessibility & contrast

On white

4.54

#427D99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#427D99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427D99

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427D99	#FFFFFF	#000000	##000000
##427D99	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7B9A

Deuteranopia (green-blind)

#637299

Tritanopia (blue-blind)

#008586

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #427d99;
/* rgb */ color: rgb(66, 125, 153);
/* oklch */ color: oklch(56.1% 0.075 230.7);

Tailwind

colors: {
  custom: {
    50: '#7ea2b7',
    500: '#427d99',
    950: '#000000',
  },
}

SCSS

$custom: #427d99;
$custom-light: #7ea2b7;
$custom-dark: #000000;

JSON

{
  "hex": "#427d99",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 153
  },
  "hsl": {
    "h": 199.31,
    "s": 39.726,
    "l": 42.941
  },
  "oklch": {
    "l": 0.56141,
    "c": 0.07526,
    "h": 230.7
  },
  "luminance": 0.18125
}

Semantic roles & 50–950 ramp

primary

#427D99

secondary

#B79280

accent

#7F58D0

background

#F8FAFB

surface

#EFF3F6

border

#CACDD0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #427D99

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

Preview Lab → · Contrast checker → · Palette generator →