#4663CB#4663CB

#4663CB is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.4% C 0.164 H 268.6°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#4663CB
RGB	rgb(70, 99, 203)
HSL	hsl(227, 56%, 54%)
HSV	hsv(227, 66%, 80%)
CMYK	cmyk(65.5%, 51.2%, 0%, 20.4%)
CIE-LAB	lab(44.99, 22.97, -57.30)
CIE-LCH	lch(44.99, 61.73, 291.85°)
OKLab	oklab(53.43% -0.0041 -0.1644)
OKLCH	oklch(53.43% 0.164 268.6)
XYZ	xyz(17.7634, 14.5359, 58.3579)
Luminance	0.1454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4663CB #CBAE46

analogous

#46A5CB #4663CB #6B46CB

triadic

#4663CB #CB4663 #63CB46

tetradic

#4663CB #CB46A5 #CBAE46 #46CB6B

square

#4663CB #CB46A5 #CBAE46 #46CB6B

split-complementary

#4663CB #CB6B46 #A5CB46

monochromatic

#213376 #2E48A5 #4663CB #768BD8 #A6B4E6

Accessibility & contrast

On white

5.37

#4663CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#4663CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4663CB

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4663CB	#FFFFFF	#000000	##FFFFFF
##4663CB	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2571CF

Deuteranopia (green-blind)

#0065C9

Tritanopia (blue-blind)

#007B8D

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4663cb;
/* rgb */ color: rgb(70, 99, 203);
/* oklch */ color: oklch(53.4% 0.164 268.6);

Tailwind

colors: {
  custom: {
    50: '#878fdb',
    500: '#4663cb',
    950: '#000000',
  },
}

SCSS

$custom: #4663cb;
$custom-light: #878fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4663cb",
  "rgb": {
    "r": 70,
    "g": 99,
    "b": 203
  },
  "hsl": {
    "h": 226.917,
    "s": 56.118,
    "l": 53.529
  },
  "oklch": {
    "l": 0.53426,
    "c": 0.16447,
    "h": 268.6
  },
  "luminance": 0.14538
}

Semantic roles & 50–950 ramp

primary

#4663CB

secondary

#D3C69A

accent

#BE48DF

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #4663CB

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

Preview Lab → · Contrast checker → · Palette generator →