#427DD5#427DD5

#427DD5 is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.4% C 0.148 H 258.3°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#427DD5
RGB	rgb(66, 125, 213)
HSL	hsl(216, 64%, 55%)
HSV	hsv(216, 69%, 84%)
CMYK	cmyk(69%, 41.3%, 0%, 16.5%)
CIE-LAB	lab(52.54, 9.63, -50.90)
CIE-LCH	lch(52.54, 51.81, 280.71°)
OKLab	oklab(59.36% -0.03 -0.1453)
OKLCH	oklch(59.36% 0.148 258.3)
XYZ	xyz(21.5863, 20.6273, 65.7817)
Luminance	0.2063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DD5 #D59A42

analogous

#42C7D5 #427DD5 #5042D5

triadic

#427DD5 #D5427D #7DD542

tetradic

#427DD5 #D542C7 #D59A42 #42D550

square

#427DD5 #D542C7 #D59A42 #42D550

split-complementary

#427DD5 #D55042 #C7D542

monochromatic

#1C4480 #285FB2 #427DD5 #749FE0 #A6C2EB

Accessibility & contrast

On white

4.10

#427DD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#427DD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DD5

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DD5	#FFFFFF	#000000	##000000
##427DD5	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5485D8

Deuteranopia (green-blind)

#3C77D3

Tritanopia (blue-blind)

#00919E

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #427dd5;
/* rgb */ color: rgb(66, 125, 213);
/* oklch */ color: oklch(59.4% 0.148 258.3);

Tailwind

colors: {
  custom: {
    50: '#86a2e2',
    500: '#427dd5',
    950: '#000000',
  },
}

SCSS

$custom: #427dd5;
$custom-light: #86a2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#427dd5",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 213
  },
  "hsl": {
    "h": 215.918,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.5936,
    "c": 0.14837,
    "h": 258.3
  },
  "luminance": 0.2063
}

Semantic roles & 50–950 ramp

primary

#427DD5

secondary

#D8C09A

accent

#A441E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #427DD5

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

Preview Lab → · Contrast checker → · Palette generator →