#4E71BB#4E71BB

#4E71BB is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.7% C 0.122 H 263.8°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#4E71BB
RGB	rgb(78, 113, 187)
HSL	hsl(221, 44%, 52%)
HSV	hsv(221, 58%, 73%)
CMYK	cmyk(58.3%, 39.6%, 0%, 26.7%)
CIE-LAB	lab(48.28, 10.13, -42.79)
CIE-LCH	lch(48.28, 43.97, 283.32°)
OKLab	oklab(55.75% -0.0132 -0.1214)
OKLCH	oklch(55.75% 0.122 263.8)
XYZ	xyz(18.0136, 17.0163, 49.3393)
Luminance	0.1702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E71BB #BB984E

analogous

#4EA8BB #4E71BB #624EBB

triadic

#4E71BB #BB4E71 #71BB4E

tetradic

#4E71BB #BB4EA8 #BB984E #4EBB62

square

#4E71BB #BB4EA8 #BB984E #4EBB62

split-complementary

#4E71BB #BB624E #A8BB4E

monochromatic

#283C67 #395693 #4E71BB #7A94CC #A6B8DD

Accessibility & contrast

On white

4.77

#4E71BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#4E71BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E71BB

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E71BB	#FFFFFF	#000000	##FFFFFF
##4E71BB	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5278BE

Deuteranopia (green-blind)

#436EB9

Tritanopia (blue-blind)

#00818D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4e71bb;
/* rgb */ color: rgb(78, 113, 187);
/* oklch */ color: oklch(55.7% 0.122 263.8);

Tailwind

colors: {
  custom: {
    50: '#8899d0',
    500: '#4e71bb',
    950: '#000000',
  },
}

SCSS

$custom: #4e71bb;
$custom-light: #8899d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e71bb",
  "rgb": {
    "r": 78,
    "g": 113,
    "b": 187
  },
  "hsl": {
    "h": 220.734,
    "s": 44.49,
    "l": 51.961
  },
  "oklch": {
    "l": 0.55747,
    "c": 0.12217,
    "h": 263.8
  },
  "luminance": 0.17018
}

Semantic roles & 50–950 ramp

primary

#4E71BB

secondary

#CABB9B

accent

#AB54D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4E71BB

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

Preview Lab → · Contrast checker → · Palette generator →