#427ACE#427ACE

#427ACE is a mid, vivid blue. Relative luminance 0.195; OKLCH L 58.3% C 0.142 H 258.4°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#427ACE
RGB	rgb(66, 122, 206)
HSL	hsl(216, 59%, 53%)
HSV	hsv(216, 68%, 81%)
CMYK	cmyk(68%, 40.8%, 0%, 19.2%)
CIE-LAB	lab(51.30, 8.98, -48.90)
CIE-LCH	lch(51.30, 49.72, 280.41°)
OKLab	oklab(58.28% -0.0287 -0.1395)
OKLCH	oklch(58.28% 0.142 258.4)
XYZ	xyz(20.3429, 19.5315, 61.0784)
Luminance	0.1953 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427ACE #CE9642

analogous

#42C0CE #427ACE #5042CE

triadic

#427ACE #CE427A #7ACE42

tetradic

#427ACE #CE42C0 #CE9642 #42CE50

square

#427ACE #CE42C0 #CE9642 #42CE50

split-complementary

#427ACE #CE5042 #C0CE42

monochromatic

#1F4277 #2B5DA7 #427ACE #739CDB #A3BEE7

Accessibility & contrast

On white

4.28

#427ACE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#427ACE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427ACE

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427ACE	#FFFFFF	#000000	##000000
##427ACE	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5381D1

Deuteranopia (green-blind)

#3D74CC

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427ace;
/* rgb */ color: rgb(66, 122, 206);
/* oklch */ color: oklch(58.3% 0.142 258.4);

Tailwind

colors: {
  custom: {
    50: '#859fdd',
    500: '#427ace',
    950: '#000000',
  },
}

SCSS

$custom: #427ace;
$custom-light: #859fdd;
$custom-dark: #000000;

JSON

{
  "hex": "#427ace",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 206
  },
  "hsl": {
    "h": 216,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.58275,
    "c": 0.14239,
    "h": 258.4
  },
  "luminance": 0.19534
}

Semantic roles & 50–950 ramp

primary

#427ACE

secondary

#D4BC98

accent

#A446E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427ACE

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

Preview Lab → · Contrast checker → · Palette generator →