#4F66DB#4F66DB

#4F66DB is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.7% C 0.180 H 271.0°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#4F66DB
RGB	rgb(79, 102, 219)
HSL	hsl(230, 66%, 58%)
HSV	hsv(230, 64%, 86%)
CMYK	cmyk(63.9%, 53.4%, 0%, 14.1%)
CIE-LAB	lab(47.34, 28.10, -62.63)
CIE-LCH	lch(47.34, 68.65, 294.17°)
OKLab	oklab(55.67% 0.0033 -0.1799)
OKLCH	oklch(55.67% 0.18 271)
XYZ	xyz(20.7577, 16.2776, 69.0521)
Luminance	0.1628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F66DB #DBC44F

analogous

#4FACDB #4F66DB #7E4FDB

triadic

#4F66DB #DB4F66 #66DB4F

tetradic

#4F66DB #DB4FAC #DBC44F #4FDB7E

square

#4F66DB #DB4FAC #DBC44F #4FDB7E

split-complementary

#4F66DB #DB7E4F #ACDB4F

monochromatic

#1E3192 #2842C5 #4F66DB #8292E5 #B5BEF0

Accessibility & contrast

On white

4.93

#4F66DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#4F66DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F66DB

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F66DB	#FFFFFF	#000000	##FFFFFF
##4F66DB	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1377DF

Deuteranopia (green-blind)

#006AD9

Tritanopia (blue-blind)

#008297

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #4f66db;
/* rgb */ color: rgb(79, 102, 219);
/* oklch */ color: oklch(55.7% 0.180 271.0);

Tailwind

colors: {
  custom: {
    50: '#8e91e7',
    500: '#4f66db',
    950: '#000000',
  },
}

SCSS

$custom: #4f66db;
$custom-light: #8e91e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4f66db",
  "rgb": {
    "r": 79,
    "g": 102,
    "b": 219
  },
  "hsl": {
    "h": 230.143,
    "s": 66.038,
    "l": 58.431
  },
  "oklch": {
    "l": 0.55669,
    "c": 0.1799,
    "h": 271
  },
  "luminance": 0.16279
}

Semantic roles & 50–950 ramp

primary

#4F66DB

secondary

#DFD6A7

accent

#CD3FE9

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #4F66DB

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

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