#4F71BA#4F71BA

#4F71BA is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.7% C 0.120 H 264.0°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#4F71BA
RGB	rgb(79, 113, 186)
HSL	hsl(221, 44%, 52%)
HSV	hsv(221, 58%, 73%)
CMYK	cmyk(57.5%, 39.2%, 0%, 27.1%)
CIE-LAB	lab(48.28, 10.01, -42.21)
CIE-LCH	lch(48.28, 43.38, 283.34°)
OKLab	oklab(55.74% -0.0125 -0.1197)
OKLCH	oklch(55.74% 0.12 264)
XYZ	xyz(17.9895, 17.0162, 48.7813)
Luminance	0.1702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F71BA #BA984F

analogous

#4FA6BA #4F71BA #634FBA

triadic

#4F71BA #BA4F71 #71BA4F

tetradic

#4F71BA #BA4FA6 #BA984F #4FBA63

square

#4F71BA #BA4FA6 #BA984F #4FBA63

split-complementary

#4F71BA #BA634F #A6BA4F

monochromatic

#283C66 #395692 #4F71BA #7B94CB #A7B8DC

Accessibility & contrast

On white

4.77

#4F71BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#4F71BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F71BA

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F71BA	#FFFFFF	#000000	##FFFFFF
##4F71BA	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)

#5278BD

Deuteranopia (green-blind)

#456EB8

Tritanopia (blue-blind)

#00818C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4f71ba;
/* rgb */ color: rgb(79, 113, 186);
/* oklch */ color: oklch(55.7% 0.120 264.0);

Tailwind

colors: {
  custom: {
    50: '#8899cf',
    500: '#4f71ba',
    950: '#000000',
  },
}

SCSS

$custom: #4f71ba;
$custom-light: #8899cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4f71ba",
  "rgb": {
    "r": 79,
    "g": 113,
    "b": 186
  },
  "hsl": {
    "h": 220.935,
    "s": 43.673,
    "l": 51.961
  },
  "oklch": {
    "l": 0.55743,
    "c": 0.12038,
    "h": 264
  },
  "luminance": 0.17018
}

Semantic roles & 50–950 ramp

primary

#4F71BA

secondary

#CABB9B

accent

#AB54D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4F71BA

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

Preview Lab → · Contrast checker → · Palette generator →