#427BCD#427BCD

#427BCD is a mid, vivid blue. Relative luminance 0.197; OKLCH L 58.4% C 0.140 H 257.7°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#427BCD
RGB	rgb(66, 123, 205)
HSL	hsl(215, 58%, 53%)
HSV	hsv(215, 68%, 80%)
CMYK	cmyk(67.8%, 40%, 0%, 19.6%)
CIE-LAB	lab(51.53, 8.02, -47.97)
CIE-LCH	lch(51.53, 48.64, 279.49°)
OKLab	oklab(58.43% -0.0298 -0.1367)
OKLCH	oklch(58.43% 0.14 257.7)
XYZ	xyz(20.3452, 19.7299, 60.4818)
Luminance	0.1973 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BCD #CD9442

analogous

#42C0CD #427BCD #4E42CD

triadic

#427BCD #CD427B #7BCD42

tetradic

#427BCD #CD42C0 #CD9442 #42CD4E

square

#427BCD #CD42C0 #CD9442 #42CD4E

split-complementary

#427BCD #CD4E42 #C0CD42

monochromatic

#1F4376 #2C5EA6 #427BCD #729DDA #A3BFE7

Accessibility & contrast

On white

4.25

#427BCD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#427BCD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BCD

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BCD	#FFFFFF	#000000	##000000
##427BCD	1.00	4.25	4.95	4.95
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5582D0

Deuteranopia (green-blind)

#4075CB

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #427bcd;
/* rgb */ color: rgb(66, 123, 205);
/* oklch */ color: oklch(58.4% 0.140 257.7);

Tailwind

colors: {
  custom: {
    50: '#85a0dd',
    500: '#427bcd',
    950: '#000000',
  },
}

SCSS

$custom: #427bcd;
$custom-light: #85a0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#427bcd",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 205
  },
  "hsl": {
    "h": 215.396,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58433,
    "c": 0.13994,
    "h": 257.7
  },
  "luminance": 0.19732
}

Semantic roles & 50–950 ramp

primary

#427BCD

secondary

#D3BB97

accent

#A246E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427BCD

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

Preview Lab → · Contrast checker → · Palette generator →