#4F66C8#4F66C8

#4F66C8 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.3% C 0.154 H 270.6°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#4F66C8
RGB	rgb(79, 102, 200)
HSL	hsl(229, 52%, 55%)
HSV	hsv(229, 61%, 78%)
CMYK	cmyk(60.5%, 49%, 0%, 21.6%)
CIE-LAB	lab(46.09, 21.61, -53.78)
CIE-LCH	lch(46.09, 57.96, 291.89°)
OKLab	oklab(54.33% 0.0016 -0.1538)
OKLCH	oklch(54.33% 0.154 270.6)
XYZ	xyz(18.3977, 15.3336, 56.6226)
Luminance	0.1533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F66C8 #C8B14F

analogous

#4FA3C8 #4F66C8 #754FC8

triadic

#4F66C8 #C84F66 #66C84F

tetradic

#4F66C8 #C84FA3 #C8B14F #4FC875

square

#4F66C8 #C84FA3 #C8B14F #4FC875

split-complementary

#4F66C8 #C8754F #A3C84F

monochromatic

#253577 #344AA6 #4F66C8 #7E8FD7 #ACB7E5

Accessibility & contrast

On white

5.16

#4F66C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#4F66C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F66C8

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F66C8	#FFFFFF	#000000	##FFFFFF
##4F66C8	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3373CC

Deuteranopia (green-blind)

#1C68C6

Tritanopia (blue-blind)

#007C8D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4f66c8;
/* rgb */ color: rgb(79, 102, 200);
/* oklch */ color: oklch(54.3% 0.154 270.6);

Tailwind

colors: {
  custom: {
    50: '#8b91d9',
    500: '#4f66c8',
    950: '#000000',
  },
}

SCSS

$custom: #4f66c8;
$custom-light: #8b91d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4f66c8",
  "rgb": {
    "r": 79,
    "g": 102,
    "b": 200
  },
  "hsl": {
    "h": 228.595,
    "s": 52.381,
    "l": 54.706
  },
  "oklch": {
    "l": 0.54327,
    "c": 0.15385,
    "h": 270.6
  },
  "luminance": 0.15335
}

Semantic roles & 50–950 ramp

primary

#4F66C8

secondary

#D3C9A0

accent

#C04CDC

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4F66C8

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

Preview Lab → · Contrast checker → · Palette generator →