#4C71B2#4C71B2

#4C71B2 is a mid, moderate blue. Relative luminance 0.166; OKLCH L 55.1% C 0.110 H 261.0°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#4C71B2
RGB	rgb(76, 113, 178)
HSL	hsl(218, 40%, 50%)
HSV	hsv(218, 57%, 70%)
CMYK	cmyk(57.3%, 36.5%, 0%, 30.2%)
CIE-LAB	lab(47.70, 6.69, -38.50)
CIE-LCH	lch(47.70, 39.08, 279.86°)
OKLab	oklab(55.11% -0.0172 -0.1089)
OKLCH	oklch(55.11% 0.11 261)
XYZ	xyz(16.9187, 16.5597, 44.4156)
Luminance	0.1656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C71B2 #B28D4C

analogous

#4CA4B2 #4C71B2 #5A4CB2

triadic

#4C71B2 #B24C71 #71B24C

tetradic

#4C71B2 #B24CA4 #B28D4C #4CB25A

square

#4C71B2 #B24CA4 #B28D4C #4CB25A

split-complementary

#4C71B2 #B25A4C #A4B24C

monochromatic

#273B5C #3A5687 #4C71B2 #7693C5 #A1B5D7

Accessibility & contrast

On white

4.87

#4C71B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#4C71B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C71B2

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C71B2	#FFFFFF	#000000	##FFFFFF
##4C71B2	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5676B5

Deuteranopia (green-blind)

#496DB1

Tritanopia (blue-blind)

#007F89

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4c71b2;
/* rgb */ color: rgb(76, 113, 178);
/* oklch */ color: oklch(55.1% 0.110 261.0);

Tailwind

colors: {
  custom: {
    50: '#8699c9',
    500: '#4c71b2',
    950: '#000000',
  },
}

SCSS

$custom: #4c71b2;
$custom-light: #8699c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4c71b2",
  "rgb": {
    "r": 76,
    "g": 113,
    "b": 178
  },
  "hsl": {
    "h": 218.235,
    "s": 40.157,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55114,
    "c": 0.1103,
    "h": 261
  },
  "luminance": 0.16561
}

Semantic roles & 50–950 ramp

primary

#4C71B2

secondary

#C4B396

accent

#A458D0

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #4C71B2

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

Preview Lab → · Contrast checker → · Palette generator →