#427DD2#427DD2

#427DD2 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.2% C 0.144 H 257.7°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#427DD2
RGB	rgb(66, 125, 210)
HSL	hsl(215, 62%, 54%)
HSV	hsv(215, 69%, 82%)
CMYK	cmyk(68.6%, 40.5%, 0%, 17.6%)
CIE-LAB	lab(52.37, 8.57, -49.47)
CIE-LCH	lch(52.37, 50.21, 279.82°)
OKLab	oklab(59.18% -0.0307 -0.1411)
OKLCH	oklch(59.18% 0.144 257.7)
XYZ	xyz(21.2090, 20.4764, 63.7949)
Luminance	0.2048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DD2 #D29742

analogous

#42C5D2 #427DD2 #4F42D2

triadic

#427DD2 #D2427D #7DD242

tetradic

#427DD2 #D242C5 #D29742 #42D24F

square

#427DD2 #D242C5 #D29742 #42D24F

split-complementary

#427DD2 #D24F42 #C5D242

monochromatic

#1E447C #295FAD #427DD2 #739FDE #A5C1EA

Accessibility & contrast

On white

4.12

#427DD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#427DD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DD2

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DD2	#FFFFFF	#000000	##000000
##427DD2	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5684D5

Deuteranopia (green-blind)

#3F77D0

Tritanopia (blue-blind)

#00919D

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #427dd2;
/* rgb */ color: rgb(66, 125, 210);
/* oklch */ color: oklch(59.2% 0.144 257.7);

Tailwind

colors: {
  custom: {
    50: '#86a2e0',
    500: '#427dd2',
    950: '#000000',
  },
}

SCSS

$custom: #427dd2;
$custom-light: #86a2e0;
$custom-dark: #000000;

JSON

{
  "hex": "#427dd2",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 210
  },
  "hsl": {
    "h": 215.417,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.59176,
    "c": 0.14439,
    "h": 257.7
  },
  "luminance": 0.20479
}

Semantic roles & 50–950 ramp

primary

#427DD2

secondary

#D7BD99

accent

#A243E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #427DD2

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

Preview Lab → · Contrast checker → · Palette generator →