#4270DA#4270DA

#4270DA is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.9% C 0.170 H 264.1°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#4270DA
RGB	rgb(66, 112, 218)
HSL	hsl(222, 67%, 56%)
HSV	hsv(222, 70%, 85%)
CMYK	cmyk(69.7%, 48.6%, 0%, 14.5%)
CIE-LAB	lab(49.26, 19.49, -58.99)
CIE-LCH	lch(49.26, 62.13, 288.28°)
OKLab	oklab(56.93% -0.0175 -0.1693)
OKLCH	oklch(56.93% 0.17 264.1)
XYZ	xyz(20.6914, 17.8064, 68.6626)
Luminance	0.1781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4270DA #DAAC42

analogous

#42BCDA #4270DA #6042DA

triadic

#4270DA #DA4270 #70DA42

tetradic

#4270DA #DA42BC #DAAC42 #42DA60

square

#4270DA #DA42BC #DAAC42 #42DA60

split-complementary

#4270DA #DA6042 #BCDA42

monochromatic

#1A3B87 #2452BA #4270DA #7597E4 #A8BDEE

Accessibility & contrast

On white

4.60

#4270DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#4270DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4270DA

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4270DA	#FFFFFF	#000000	##FFFFFF
##4270DA	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#357CDE

Deuteranopia (green-blind)

#006FD8

Tritanopia (blue-blind)

#00899A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4270da;
/* rgb */ color: rgb(66, 112, 218);
/* oklch */ color: oklch(56.9% 0.170 264.1);

Tailwind

colors: {
  custom: {
    50: '#8898e6',
    500: '#4270da',
    950: '#000000',
  },
}

SCSS

$custom: #4270da;
$custom-light: #8898e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4270da",
  "rgb": {
    "r": 66,
    "g": 112,
    "b": 218
  },
  "hsl": {
    "h": 221.842,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.56934,
    "c": 0.17017,
    "h": 264.1
  },
  "luminance": 0.17809
}

Semantic roles & 50–950 ramp

primary

#4270DA

secondary

#DBC89C

accent

#B63EEA

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4270DA

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

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