#4F71DB#4F71DB

#4F71DB is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.8% C 0.166 H 267.6°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4F71DB
RGB	rgb(79, 113, 219)
HSL	hsl(225, 66%, 58%)
HSV	hsv(225, 64%, 86%)
CMYK	cmyk(63.9%, 48.4%, 0%, 14.1%)
CIE-LAB	lab(50.20, 21.25, -58.02)
CIE-LCH	lch(50.20, 61.78, 290.11°)
OKLab	oklab(57.84% -0.0069 -0.1661)
OKLCH	oklch(57.84% 0.166 267.6)
XYZ	xyz(21.9114, 18.5850, 69.4367)
Luminance	0.1859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F71DB #DBB94F

analogous

#4FB7DB #4F71DB #734FDB

triadic

#4F71DB #DB4F71 #71DB4F

tetradic

#4F71DB #DB4FB7 #DBB94F #4FDB73

square

#4F71DB #DB4FB7 #DBB94F #4FDB73

split-complementary

#4F71DB #DB734F #B7DB4F

monochromatic

#1E3A92 #284EC5 #4F71DB #829AE5 #B5C3F0

Accessibility & contrast

On white

4.45

#4F71DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#4F71DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F71DB

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F71DB	#FFFFFF	#000000	##000000
##4F71DB	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)

#397EDF

Deuteranopia (green-blind)

#1871D9

Tritanopia (blue-blind)

#00899B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4f71db;
/* rgb */ color: rgb(79, 113, 219);
/* oklch */ color: oklch(57.8% 0.166 267.6);

Tailwind

colors: {
  custom: {
    50: '#8e99e7',
    500: '#4f71db',
    950: '#000000',
  },
}

SCSS

$custom: #4f71db;
$custom-light: #8e99e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4f71db",
  "rgb": {
    "r": 79,
    "g": 113,
    "b": 219
  },
  "hsl": {
    "h": 225.429,
    "s": 66.038,
    "l": 58.431
  },
  "oklch": {
    "l": 0.57835,
    "c": 0.16628,
    "h": 267.6
  },
  "luminance": 0.18587
}

Semantic roles & 50–950 ramp

primary

#4F71DB

secondary

#DFD1A7

accent

#C03FE9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4F71DB

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

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