#4F66BC#4F66BC

#4F66BC is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.5% C 0.137 H 270.0°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#4F66BC
RGB	rgb(79, 102, 188)
HSL	hsl(227, 45%, 52%)
HSV	hsv(227, 58%, 74%)
CMYK	cmyk(58%, 45.7%, 0%, 26.3%)
CIE-LAB	lab(45.35, 17.54, -48.03)
CIE-LCH	lch(45.35, 51.13, 290.06°)
OKLab	oklab(53.53% 0 -0.1369)
OKLCH	oklch(53.53% 0.137 270)
XYZ	xyz(17.0499, 14.7945, 49.5244)
Luminance	0.1480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F66BC #BCA54F

analogous

#4F9DBC #4F66BC #6E4FBC

triadic

#4F66BC #BC4F66 #66BC4F

tetradic

#4F66BC #BC4F9D #BCA54F #4FBC6E

square

#4F66BC #BC4F9D #BCA54F #4FBC6E

split-complementary

#4F66BC #BC6E4F #9DBC4F

monochromatic

#283669 #394C95 #4F66BC #7B8DCD #A8B3DE

Accessibility & contrast

On white

5.30

#4F66BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#4F66BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F66BC

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F66BC	#FFFFFF	#000000	##FFFFFF
##4F66BC	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E70BF

Deuteranopia (green-blind)

#2F67BA

Tritanopia (blue-blind)

#007988

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4f66bc;
/* rgb */ color: rgb(79, 102, 188);
/* oklch */ color: oklch(53.5% 0.137 270.0);

Tailwind

colors: {
  custom: {
    50: '#8991d1',
    500: '#4f66bc',
    950: '#000000',
  },
}

SCSS

$custom: #4f66bc;
$custom-light: #8991d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4f66bc",
  "rgb": {
    "r": 79,
    "g": 102,
    "b": 188
  },
  "hsl": {
    "h": 227.339,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.53529,
    "c": 0.13693,
    "h": 270
  },
  "luminance": 0.14796
}

Semantic roles & 50–950 ramp

primary

#4F66BC

secondary

#CBC19C

accent

#B953D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4F66BC

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

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