#427DCF#427DCF

#427DCF is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 59.0% C 0.140 H 257.1°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#427DCF
RGB	rgb(66, 125, 207)
HSL	hsl(215, 59%, 54%)
HSV	hsv(215, 68%, 81%)
CMYK	cmyk(68.1%, 39.6%, 0%, 18.8%)
CIE-LAB	lab(52.21, 7.50, -48.03)
CIE-LCH	lch(52.21, 48.62, 278.88°)
OKLab	oklab(58.99% -0.0313 -0.1369)
OKLCH	oklch(58.99% 0.14 257.1)
XYZ	xyz(20.8388, 20.3283, 61.8449)
Luminance	0.2033 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DCF #CF9442

analogous

#42C3CF #427DCF #4D42CF

triadic

#427DCF #CF427D #7DCF42

tetradic

#427DCF #CF42C3 #CF9442 #42CF4D

square

#427DCF #CF42C3 #CF9442 #42CF4D

split-complementary

#427DCF #CF4D42 #C3CF42

monochromatic

#1F4478 #2B60A9 #427DCF #739FDB #A4C0E8

Accessibility & contrast

On white

4.15

#427DCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#427DCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DCF

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DCF	#FFFFFF	#000000	##000000
##427DCF	1.00	4.15	5.07	5.07
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5784D2

Deuteranopia (green-blind)

#4276CD

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427dcf;
/* rgb */ color: rgb(66, 125, 207);
/* oklch */ color: oklch(59.0% 0.140 257.1);

Tailwind

colors: {
  custom: {
    50: '#85a2de',
    500: '#427dcf',
    950: '#000000',
  },
}

SCSS

$custom: #427dcf;
$custom-light: #85a2de;
$custom-dark: #000000;

JSON

{
  "hex": "#427dcf",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 207
  },
  "hsl": {
    "h": 214.894,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58994,
    "c": 0.14041,
    "h": 257.1
  },
  "luminance": 0.2033
}

Semantic roles & 50–950 ramp

primary

#427DCF

secondary

#D5BB98

accent

#A145E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #427DCF

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

Preview Lab → · Contrast checker → · Palette generator →