#4272CB#4272CB

#4272CB is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.4% C 0.147 H 261.6°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#4272CB
RGB	rgb(66, 114, 203)
HSL	hsl(219, 57%, 53%)
HSV	hsv(219, 67%, 80%)
CMYK	cmyk(67.5%, 43.8%, 0%, 20.4%)
CIE-LAB	lab(48.89, 12.87, -51.05)
CIE-LCH	lch(48.89, 52.65, 284.15°)
OKLab	oklab(56.35% -0.0216 -0.1459)
OKLCH	oklch(56.35% 0.147 261.6)
XYZ	xyz(19.0397, 17.5028, 58.8633)
Luminance	0.1751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4272CB #CB9B42

analogous

#42B6CB #4272CB #5642CB

triadic

#4272CB #CB4272 #72CB42

tetradic

#4272CB #CB42B6 #CB9B42 #42CB56

square

#4272CB #CB42B6 #CB9B42 #42CB56

split-complementary

#4272CB #CB5642 #B6CB42

monochromatic

#203D73 #2D56A3 #4272CB #7296D8 #A2BAE5

Accessibility & contrast

On white

4.67

#4272CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#4272CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4272CB

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4272CB	#FFFFFF	#000000	##FFFFFF
##4272CB	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#477BCE

Deuteranopia (green-blind)

#2F6EC9

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4272cb;
/* rgb */ color: rgb(66, 114, 203);
/* oklch */ color: oklch(56.4% 0.147 261.6);

Tailwind

colors: {
  custom: {
    50: '#859adb',
    500: '#4272cb',
    950: '#000000',
  },
}

SCSS

$custom: #4272cb;
$custom-light: #859adb;
$custom-dark: #000000;

JSON

{
  "hex": "#4272cb",
  "rgb": {
    "r": 66,
    "g": 114,
    "b": 203
  },
  "hsl": {
    "h": 218.978,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.56351,
    "c": 0.14749,
    "h": 261.6
  },
  "luminance": 0.17505
}

Semantic roles & 50–950 ramp

primary

#4272CB

secondary

#D2BD97

accent

#AB48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4272CB

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

Preview Lab → · Contrast checker → · Palette generator →