#4F66CB#4F66CB

#4F66CB is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.5% C 0.158 H 270.7°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#4F66CB
RGB	rgb(79, 102, 203)
HSL	hsl(229, 54%, 55%)
HSV	hsv(229, 61%, 80%)
CMYK	cmyk(61.1%, 49.8%, 0%, 20.4%)
CIE-LAB	lab(46.28, 22.63, -55.20)
CIE-LCH	lch(46.28, 59.66, 292.29°)
OKLab	oklab(54.53% 0.0019 -0.158)
OKLCH	oklch(54.53% 0.158 270.7)
XYZ	xyz(18.7517, 15.4752, 58.4872)
Luminance	0.1548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F66CB #CBB44F

analogous

#4FA4CB #4F66CB #764FCB

triadic

#4F66CB #CB4F66 #66CB4F

tetradic

#4F66CB #CB4FA4 #CBB44F #4FCB76

square

#4F66CB #CB4FA4 #CBB44F #4FCB76

split-complementary

#4F66CB #CB764F #A4CB4F

monochromatic

#24347B #3249AA #4F66CB #7E8FD9 #ADB8E7

Accessibility & contrast

On white

5.13

#4F66CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#4F66CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F66CB

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F66CB	#FFFFFF	#000000	##FFFFFF
##4F66CB	1.00	5.13	4.10	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3073CF

Deuteranopia (green-blind)

#1468C9

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #4f66cb;
/* rgb */ color: rgb(79, 102, 203);
/* oklch */ color: oklch(54.5% 0.158 270.7);

Tailwind

colors: {
  custom: {
    50: '#8b91db',
    500: '#4f66cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f66cb;
$custom-light: #8b91db;
$custom-dark: #000000;

JSON

{
  "hex": "#4f66cb",
  "rgb": {
    "r": 79,
    "g": 102,
    "b": 203
  },
  "hsl": {
    "h": 228.871,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.54533,
    "c": 0.15802,
    "h": 270.7
  },
  "luminance": 0.15477
}

Semantic roles & 50–950 ramp

primary

#4F66CB

secondary

#D5CBA1

accent

#C24ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4F66CB

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

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