#427DB7#427DB7

#427DB7 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.6% C 0.109 H 249.9°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#427DB7
RGB	rgb(66, 125, 183)
HSL	hsl(210, 47%, 49%)
HSV	hsv(210, 64%, 72%)
CMYK	cmyk(63.9%, 31.7%, 0%, 28.2%)
CIE-LAB	lab(50.97, -0.87, -36.27)
CIE-LCH	lch(50.97, 36.28, 268.62°)
OKLab	oklab(57.62% -0.0375 -0.1025)
OKLCH	oklch(57.62% 0.109 249.9)
XYZ	xyz(18.1245, 19.2426, 47.5496)
Luminance	0.1924 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DB7 #B77C42

analogous

#42B7B7 #427DB7 #4242B7

triadic

#427DB7 #B7427D #7DB742

tetradic

#427DB7 #B742B7 #B77C42 #42B742

square

#427DB7 #B742B7 #B77C42 #42B742

split-complementary

#427DB7 #B74242 #B7B742

monochromatic

#22405D #325E8A #427DB7 #6C9CCA #99BADA

Accessibility & contrast

On white

4.33

#427DB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#427DB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DB7

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DB7	#FFFFFF	#000000	##000000
##427DB7	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6480B9

Deuteranopia (green-blind)

#5474B6

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427db7;
/* rgb */ color: rgb(66, 125, 183);
/* oklch */ color: oklch(57.6% 0.109 249.9);

Tailwind

colors: {
  custom: {
    50: '#82a2cd',
    500: '#427db7',
    950: '#000000',
  },
}

SCSS

$custom: #427db7;
$custom-light: #82a2cd;
$custom-dark: #000000;

JSON

{
  "hex": "#427db7",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 183
  },
  "hsl": {
    "h": 209.744,
    "s": 46.988,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57624,
    "c": 0.10915,
    "h": 249.9
  },
  "luminance": 0.19244
}

Semantic roles & 50–950 ramp

primary

#427DB7

secondary

#C6AA8F

accent

#9351D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #427DB7

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

Preview Lab → · Contrast checker → · Palette generator →