#4B71CC#4B71CC

#4B71CC is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.6% C 0.147 H 265.0°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4B71CC
RGB	rgb(75, 113, 204)
HSL	hsl(222, 56%, 55%)
HSV	hsv(222, 63%, 80%)
CMYK	cmyk(63.2%, 44.6%, 0%, 20%)
CIE-LAB	lab(49.09, 15.37, -51.28)
CIE-LCH	lch(49.09, 53.53, 286.68°)
OKLab	oklab(56.64% -0.0128 -0.1464)
OKLCH	oklch(56.64% 0.147 265)
XYZ	xyz(19.7021, 17.6640, 59.4862)
Luminance	0.1767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B71CC #CCA64B

analogous

#4BB1CC #4B71CC #664BCC

triadic

#4B71CC #CC4B71 #71CC4B

tetradic

#4B71CC #CC4BB1 #CCA64B #4BCC66

square

#4B71CC #CC4BB1 #CCA64B #4BCC66

split-complementary

#4B71CC #CC664B #B1CC4B

monochromatic

#233C7A #3054AA #4B71CC #7B97DA #AABCE7

Accessibility & contrast

On white

4.63

#4B71CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#4B71CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4B71CC

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B71CC	#FFFFFF	#000000	##FFFFFF
##4B71CC	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467BCF

Deuteranopia (green-blind)

#316FCA

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4b71cc;
/* rgb */ color: rgb(75, 113, 204);
/* oklch */ color: oklch(56.6% 0.147 265.0);

Tailwind

colors: {
  custom: {
    50: '#8999dc',
    500: '#4b71cc',
    950: '#000000',
  },
}

SCSS

$custom: #4b71cc;
$custom-light: #8999dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b71cc",
  "rgb": {
    "r": 75,
    "g": 113,
    "b": 204
  },
  "hsl": {
    "h": 222.326,
    "s": 55.844,
    "l": 54.706
  },
  "oklch": {
    "l": 0.56637,
    "c": 0.14697,
    "h": 265
  },
  "luminance": 0.17666
}

Semantic roles & 50–950 ramp

primary

#4B71CC

secondary

#D5C59E

accent

#B349DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0D15

muted

#7D7E83

Preview Lab

Preview with #4B71CC

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

Preview Lab → · Contrast checker → · Palette generator →