#427FD3#427FD3

#427FD3 is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.7% C 0.144 H 257.0°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#427FD3
RGB	rgb(66, 127, 211)
HSL	hsl(215, 62%, 54%)
HSV	hsv(215, 69%, 83%)
CMYK	cmyk(68.7%, 39.8%, 0%, 17.3%)
CIE-LAB	lab(52.99, 7.70, -49.05)
CIE-LCH	lch(52.99, 49.65, 278.92°)
OKLab	oklab(59.68% -0.0324 -0.1398)
OKLCH	oklch(59.68% 0.144 257)
XYZ	xyz(21.5897, 21.0379, 64.5383)
Luminance	0.2104 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FD3 #D39642

analogous

#42C7D3 #427FD3 #4E42D3

triadic

#427FD3 #D3427F #7FD342

tetradic

#427FD3 #D342C7 #D39642 #42D34E

square

#427FD3 #D342C7 #D39642 #42D34E

split-complementary

#427FD3 #D34E42 #C7D342

monochromatic

#1D467D #2961AF #427FD3 #74A1DF #A5C2EA

Accessibility & contrast

On white

4.03

#427FD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#427FD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FD3

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FD3	#FFFFFF	#000000	##000000
##427FD3	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5886D6

Deuteranopia (green-blind)

#4278D1

Tritanopia (blue-blind)

#00929F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #427fd3;
/* rgb */ color: rgb(66, 127, 211);
/* oklch */ color: oklch(59.7% 0.144 257.0);

Tailwind

colors: {
  custom: {
    50: '#86a3e1',
    500: '#427fd3',
    950: '#000000',
  },
}

SCSS

$custom: #427fd3;
$custom-light: #86a3e1;
$custom-dark: #000000;

JSON

{
  "hex": "#427fd3",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 211
  },
  "hsl": {
    "h": 214.759,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.59675,
    "c": 0.14353,
    "h": 257
  },
  "luminance": 0.2104
}

Semantic roles & 50–950 ramp

primary

#427FD3

secondary

#D7BD9A

accent

#A142E5

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #427FD3

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

Preview Lab → · Contrast checker → · Palette generator →