#427FD5#427FD5

#427FD5 is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.8% C 0.146 H 257.4°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#427FD5
RGB	rgb(66, 127, 213)
HSL	hsl(215, 64%, 55%)
HSV	hsv(215, 69%, 84%)
CMYK	cmyk(69%, 40.4%, 0%, 16.5%)
CIE-LAB	lab(53.10, 8.41, -50.01)
CIE-LCH	lch(53.10, 50.71, 279.55°)
OKLab	oklab(59.8% -0.0319 -0.1426)
OKLCH	oklch(59.8% 0.146 257.4)
XYZ	xyz(21.8420, 21.1388, 65.8670)
Luminance	0.2114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FD5 #D59842

analogous

#42C8D5 #427FD5 #4F42D5

triadic

#427FD5 #D5427F #7FD542

tetradic

#427FD5 #D542C8 #D59842 #42D54F

square

#427FD5 #D542C8 #D59842 #42D54F

split-complementary

#427FD5 #D54F42 #C8D542

monochromatic

#1C4680 #2861B2 #427FD5 #74A1E0 #A6C3EB

Accessibility & contrast

On white

4.02

#427FD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#427FD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FD5

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FD5	#FFFFFF	#000000	##000000
##427FD5	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5786D8

Deuteranopia (green-blind)

#4079D3

Tritanopia (blue-blind)

#0093A0

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #427fd5;
/* rgb */ color: rgb(66, 127, 213);
/* oklch */ color: oklch(59.8% 0.146 257.4);

Tailwind

colors: {
  custom: {
    50: '#86a3e2',
    500: '#427fd5',
    950: '#000000',
  },
}

SCSS

$custom: #427fd5;
$custom-light: #86a3e2;
$custom-dark: #000000;

JSON

{
  "hex": "#427fd5",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 213
  },
  "hsl": {
    "h": 215.102,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.59796,
    "c": 0.14616,
    "h": 257.4
  },
  "luminance": 0.21141
}

Semantic roles & 50–950 ramp

primary

#427FD5

secondary

#D8BF9A

accent

#A241E7

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #427FD5

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

Preview Lab → · Contrast checker → · Palette generator →