#4F71CC#4F71CC

#4F71CC is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.8% C 0.146 H 266.4°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#4F71CC
RGB	rgb(79, 113, 204)
HSL	hsl(224, 55%, 55%)
HSV	hsv(224, 61%, 80%)
CMYK	cmyk(61.3%, 44.6%, 0%, 20%)
CIE-LAB	lab(49.29, 16.10, -50.94)
CIE-LCH	lch(49.29, 53.43, 287.54°)
OKLab	oklab(56.85% -0.0091 -0.1453)
OKLCH	oklch(56.85% 0.146 266.4)
XYZ	xyz(20.0249, 17.8304, 59.5014)
Luminance	0.1783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F71CC #CCAA4F

analogous

#4FAFCC #4F71CC #6B4FCC

triadic

#4F71CC #CC4F71 #71CC4F

tetradic

#4F71CC #CC4FAF #CCAA4F #4FCC6B

square

#4F71CC #CC4FAF #CCAA4F #4FCC6B

split-complementary

#4F71CC #CC6B4F #AFCC4F

monochromatic

#243C7D #3253AC #4F71CC #7E97DA #AEBEE7

Accessibility & contrast

On white

4.60

#4F71CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#4F71CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4F71CC

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F71CC	#FFFFFF	#000000	##FFFFFF
##4F71CC	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467BCF

Deuteranopia (green-blind)

#3370CA

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4f71cc;
/* rgb */ color: rgb(79, 113, 204);
/* oklch */ color: oklch(56.8% 0.146 266.4);

Tailwind

colors: {
  custom: {
    50: '#8b99dc',
    500: '#4f71cc',
    950: '#000000',
  },
}

SCSS

$custom: #4f71cc;
$custom-light: #8b99dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4f71cc",
  "rgb": {
    "r": 79,
    "g": 113,
    "b": 204
  },
  "hsl": {
    "h": 223.68,
    "s": 55.066,
    "l": 55.49
  },
  "oklch": {
    "l": 0.56848,
    "c": 0.14563,
    "h": 266.4
  },
  "luminance": 0.17832
}

Semantic roles & 50–950 ramp

primary

#4F71CC

secondary

#D5C7A1

accent

#B649DE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #4F71CC

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

Preview Lab → · Contrast checker → · Palette generator →