#4270D8#4270D8

#4270D8 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.8% C 0.167 H 263.9°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#4270D8
RGB	rgb(66, 112, 216)
HSL	hsl(222, 66%, 55%)
HSV	hsv(222, 69%, 85%)
CMYK	cmyk(69.4%, 48.1%, 0%, 15.3%)
CIE-LAB	lab(49.13, 18.77, -58.06)
CIE-LCH	lch(49.13, 61.02, 287.92°)
OKLab	oklab(56.8% -0.0178 -0.1665)
OKLCH	oklch(56.8% 0.167 263.9)
XYZ	xyz(20.4312, 17.7024, 67.2926)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4270D8 #D8AA42

analogous

#42BBD8 #4270D8 #5F42D8

triadic

#4270D8 #D84270 #70D842

tetradic

#4270D8 #D842BB #D8AA42 #42D85F

square

#4270D8 #D842BB #D8AA42 #42D85F

split-complementary

#4270D8 #D85F42 #BBD842

monochromatic

#1B3B84 #2652B7 #4270D8 #7596E2 #A7BDED

Accessibility & contrast

On white

4.62

#4270D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#4270D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4270D8

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4270D8	#FFFFFF	#000000	##FFFFFF
##4270D8	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#377CDC

Deuteranopia (green-blind)

#0A6ED6

Tritanopia (blue-blind)

#00889A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4270d8;
/* rgb */ color: rgb(66, 112, 216);
/* oklch */ color: oklch(56.8% 0.167 263.9);

Tailwind

colors: {
  custom: {
    50: '#8798e5',
    500: '#4270d8',
    950: '#000000',
  },
}

SCSS

$custom: #4270d8;
$custom-light: #8798e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4270d8",
  "rgb": {
    "r": 66,
    "g": 112,
    "b": 216
  },
  "hsl": {
    "h": 221.6,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.56796,
    "c": 0.16748,
    "h": 263.9
  },
  "luminance": 0.17704
}

Semantic roles & 50–950 ramp

primary

#4270D8

secondary

#DAC79C

accent

#B53FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4270D8

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

Preview Lab → · Contrast checker → · Palette generator →