#4270D7#4270D7

#4270D7 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.7% C 0.166 H 263.8°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#4270D7
RGB	rgb(66, 112, 215)
HSL	hsl(221, 65%, 55%)
HSV	hsv(221, 69%, 84%)
CMYK	cmyk(69.3%, 47.9%, 0%, 15.7%)
CIE-LAB	lab(49.07, 18.41, -57.60)
CIE-LCH	lch(49.07, 60.47, 287.73°)
OKLab	oklab(56.73% -0.0179 -0.1652)
OKLCH	oklch(56.73% 0.166 263.8)
XYZ	xyz(20.3024, 17.6508, 66.6138)
Luminance	0.1765 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4270D7 #D7A942

analogous

#42BAD7 #4270D7 #5F42D7

triadic

#4270D7 #D74270 #70D742

tetradic

#4270D7 #D742BA #D7A942 #42D75F

square

#4270D7 #D742BA #D7A942 #42D75F

split-complementary

#4270D7 #D75F42 #BAD742

monochromatic

#1C3C83 #2653B5 #4270D7 #7596E2 #A7BCEC

Accessibility & contrast

On white

4.64

#4270D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#4270D7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4270D7

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4270D7	#FFFFFF	#000000	##FFFFFF
##4270D7	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#387CDB

Deuteranopia (green-blind)

#0E6ED5

Tritanopia (blue-blind)

#008899

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4270d7;
/* rgb */ color: rgb(66, 112, 215);
/* oklch */ color: oklch(56.7% 0.166 263.8);

Tailwind

colors: {
  custom: {
    50: '#8798e4',
    500: '#4270d7',
    950: '#000000',
  },
}

SCSS

$custom: #4270d7;
$custom-light: #8798e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4270d7",
  "rgb": {
    "r": 66,
    "g": 112,
    "b": 215
  },
  "hsl": {
    "h": 221.477,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.56727,
    "c": 0.16614,
    "h": 263.8
  },
  "luminance": 0.17653
}

Semantic roles & 50–950 ramp

primary

#4270D7

secondary

#DAC69B

accent

#B440E8

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4270D7

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

Preview Lab → · Contrast checker → · Palette generator →