#4C71BB#4C71BB

#4C71BB is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.6% C 0.123 H 262.9°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#4C71BB
RGB	rgb(76, 113, 187)
HSL	hsl(220, 45%, 52%)
HSV	hsv(220, 59%, 73%)
CMYK	cmyk(59.4%, 39.6%, 0%, 26.7%)
CIE-LAB	lab(48.18, 9.72, -42.96)
CIE-LCH	lch(48.18, 44.05, 282.75°)
OKLab	oklab(55.64% -0.0151 -0.122)
OKLCH	oklch(55.64% 0.123 262.9)
XYZ	xyz(17.8522, 16.9331, 49.3317)
Luminance	0.1694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C71BB #BB964C

analogous

#4CA9BB #4C71BB #5F4CBB

triadic

#4C71BB #BB4C71 #71BB4C

tetradic

#4C71BB #BB4CA9 #BB964C #4CBB5F

square

#4C71BB #BB4CA9 #BB964C #4CBB5F

split-complementary

#4C71BB #BB5F4C #A9BB4C

monochromatic

#273C66 #385692 #4C71BB #7894CC #A5B7DD

Accessibility & contrast

On white

4.79

#4C71BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#4C71BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C71BB

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C71BB	#FFFFFF	#000000	##FFFFFF
##4C71BB	1.00	4.79	4.39	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5178BE

Deuteranopia (green-blind)

#436EB9

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4c71bb;
/* rgb */ color: rgb(76, 113, 187);
/* oklch */ color: oklch(55.6% 0.123 262.9);

Tailwind

colors: {
  custom: {
    50: '#8799d0',
    500: '#4c71bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c71bb;
$custom-light: #8799d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c71bb",
  "rgb": {
    "r": 76,
    "g": 113,
    "b": 187
  },
  "hsl": {
    "h": 220,
    "s": 44.939,
    "l": 51.569
  },
  "oklch": {
    "l": 0.55637,
    "c": 0.12293,
    "h": 262.9
  },
  "luminance": 0.16935
}

Semantic roles & 50–950 ramp

primary

#4C71BB

secondary

#CABA99

accent

#A953D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4C71BB

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

Preview Lab → · Contrast checker → · Palette generator →