#4270CF#4270CF

#4270CF is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.2% C 0.155 H 262.9°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4270CF
RGB	rgb(66, 112, 207)
HSL	hsl(220, 59%, 54%)
HSV	hsv(220, 68%, 81%)
CMYK	cmyk(68.1%, 45.9%, 0%, 18.8%)
CIE-LAB	lab(48.57, 15.55, -53.84)
CIE-LCH	lch(48.57, 56.04, 286.11°)
OKLab	oklab(56.19% -0.0191 -0.1541)
OKLCH	oklch(56.19% 0.155 262.9)
XYZ	xyz(19.2994, 17.2496, 61.3318)
Luminance	0.1725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4270CF #CFA142

analogous

#42B6CF #4270CF #5A42CF

triadic

#4270CF #CF4270 #70CF42

tetradic

#4270CF #CF42B6 #CFA142 #42CF5A

square

#4270CF #CF42B6 #CFA142 #42CF5A

split-complementary

#4270CF #CF5A42 #B6CF42

monochromatic

#1F3C78 #2B54A9 #4270CF #7395DB #A4BAE8

Accessibility & contrast

On white

4.72

#4270CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#4270CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4270CF

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4270CF	#FFFFFF	#000000	##FFFFFF
##4270CF	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#407AD3

Deuteranopia (green-blind)

#236DCD

Tritanopia (blue-blind)

#008695

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4270cf;
/* rgb */ color: rgb(66, 112, 207);
/* oklch */ color: oklch(56.2% 0.155 262.9);

Tailwind

colors: {
  custom: {
    50: '#8698de',
    500: '#4270cf',
    950: '#000000',
  },
}

SCSS

$custom: #4270cf;
$custom-light: #8698de;
$custom-dark: #000000;

JSON

{
  "hex": "#4270cf",
  "rgb": {
    "r": 66,
    "g": 112,
    "b": 207
  },
  "hsl": {
    "h": 220.426,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56187,
    "c": 0.1553,
    "h": 262.9
  },
  "luminance": 0.17252
}

Semantic roles & 50–950 ramp

primary

#4270CF

secondary

#D5C198

accent

#AF45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4270CF

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

Preview Lab → · Contrast checker → · Palette generator →