#4F77BF#4F77BF

#4F77BF is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.3% C 0.120 H 261.4°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4F77BF
RGB	rgb(79, 119, 191)
HSL	hsl(219, 47%, 53%)
HSV	hsv(219, 59%, 75%)
CMYK	cmyk(58.6%, 37.7%, 0%, 25.1%)
CIE-LAB	lab(50.23, 7.99, -41.99)
CIE-LCH	lch(50.23, 42.75, 280.78°)
OKLab	oklab(57.34% -0.0181 -0.119)
OKLCH	oklch(57.34% 0.12 261.4)
XYZ	xyz(19.2220, 18.6159, 51.8604)
Luminance	0.1862 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F77BF #BF974F

analogous

#4FAFBF #4F77BF #5F4FBF

triadic

#4F77BF #BF4F77 #77BF4F

tetradic

#4F77BF #BF4FAF #BF974F #4FBF5F

square

#4F77BF #BF4FAF #BF974F #4FBF5F

split-complementary

#4F77BF #BF5F4F #AFBF4F

monochromatic

#27406C #385A99 #4F77BF #7C9ACF #A9BCE0

Accessibility & contrast

On white

4.45

#4F77BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#4F77BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F77BF

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F77BF	#FFFFFF	#000000	##000000
##4F77BF	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#597DC2

Deuteranopia (green-blind)

#4A73BD

Tritanopia (blue-blind)

#008792

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4f77bf;
/* rgb */ color: rgb(79, 119, 191);
/* oklch */ color: oklch(57.3% 0.120 261.4);

Tailwind

colors: {
  custom: {
    50: '#899dd2',
    500: '#4f77bf',
    950: '#000000',
  },
}

SCSS

$custom: #4f77bf;
$custom-light: #899dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#4f77bf",
  "rgb": {
    "r": 79,
    "g": 119,
    "b": 191
  },
  "hsl": {
    "h": 218.571,
    "s": 46.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.57343,
    "c": 0.12041,
    "h": 261.4
  },
  "luminance": 0.18618
}

Semantic roles & 50–950 ramp

primary

#4F77BF

secondary

#CDBC9D

accent

#A751D6

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4F77BF

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

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