#4270DD#4270DD

#4270DD is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.1% C 0.174 H 264.4°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4270DD
RGB	rgb(66, 112, 221)
HSL	hsl(222, 70%, 56%)
HSV	hsv(222, 70%, 87%)
CMYK	cmyk(70.1%, 49.3%, 0%, 13.3%)
CIE-LAB	lab(49.45, 20.56, -60.38)
CIE-LCH	lch(49.45, 63.78, 288.81°)
OKLab	oklab(57.14% -0.0171 -0.1733)
OKLCH	oklch(57.14% 0.174 264.4)
XYZ	xyz(21.0875, 17.9649, 70.7488)
Luminance	0.1797 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4270DD #DDAF42

analogous

#42BDDD #4270DD #6242DD

triadic

#4270DD #DD4270 #70DD42

tetradic

#4270DD #DD42BD #DDAF42 #42DD62

square

#4270DD #DD42BD #DDAF42 #42DD62

split-complementary

#4270DD #DD6242 #BDDD42

monochromatic

#193B8C #2251BF #4270DD #7697E6 #AABEF0

Accessibility & contrast

On white

4.57

#4270DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#4270DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4270DD

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4270DD	#FFFFFF	#000000	##000000
##4270DD	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#317DE1

Deuteranopia (green-blind)

#006FDB

Tritanopia (blue-blind)

#008A9C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4270dd;
/* rgb */ color: rgb(66, 112, 221);
/* oklch */ color: oklch(57.1% 0.174 264.4);

Tailwind

colors: {
  custom: {
    50: '#8898e8',
    500: '#4270dd',
    950: '#000000',
  },
}

SCSS

$custom: #4270dd;
$custom-light: #8898e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4270dd",
  "rgb": {
    "r": 66,
    "g": 112,
    "b": 221
  },
  "hsl": {
    "h": 222.194,
    "s": 69.507,
    "l": 56.275
  },
  "oklch": {
    "l": 0.57143,
    "c": 0.17419,
    "h": 264.4
  },
  "luminance": 0.17967
}

Semantic roles & 50–950 ramp

primary

#4270DD

secondary

#DDCA9D

accent

#B83BEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4270DD

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

Preview Lab → · Contrast checker → · Palette generator →