#4270CC#4270CC

#4270CC is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.0% C 0.151 H 262.6°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4270CC
RGB	rgb(66, 112, 204)
HSL	hsl(220, 58%, 53%)
HSV	hsv(220, 68%, 80%)
CMYK	cmyk(67.6%, 45.1%, 0%, 20%)
CIE-LAB	lab(48.39, 14.48, -52.42)
CIE-LCH	lch(48.39, 54.38, 285.44°)
OKLab	oklab(55.99% -0.0196 -0.1499)
OKLCH	oklch(55.99% 0.151 262.6)
XYZ	xyz(18.9362, 17.1043, 59.4186)
Luminance	0.1711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4270CC #CC9E42

analogous

#42B5CC #4270CC #5942CC

triadic

#4270CC #CC4270 #70CC42

tetradic

#4270CC #CC42B5 #CC9E42 #42CC59

square

#4270CC #CC42B5 #CC9E42 #42CC59

split-complementary

#4270CC #CC5942 #B5CC42

monochromatic

#1F3C74 #2C54A4 #4270CC #7294D9 #A2B9E6

Accessibility & contrast

On white

4.75

#4270CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#4270CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4270CC

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4270CC	#FFFFFF	#000000	##FFFFFF
##4270CC	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#427ACF

Deuteranopia (green-blind)

#296DCA

Tritanopia (blue-blind)

#008594

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4270cc;
/* rgb */ color: rgb(66, 112, 204);
/* oklch */ color: oklch(56.0% 0.151 262.6);

Tailwind

colors: {
  custom: {
    50: '#8598dc',
    500: '#4270cc',
    950: '#000000',
  },
}

SCSS

$custom: #4270cc;
$custom-light: #8598dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4270cc",
  "rgb": {
    "r": 66,
    "g": 112,
    "b": 204
  },
  "hsl": {
    "h": 220,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.55989,
    "c": 0.15121,
    "h": 262.6
  },
  "luminance": 0.17106
}

Semantic roles & 50–950 ramp

primary

#4270CC

secondary

#D3BF97

accent

#AE47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4270CC

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

Preview Lab → · Contrast checker → · Palette generator →