#4B71BC#4B71BC

#4B71BC is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.6% C 0.125 H 262.7°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#4B71BC
RGB	rgb(75, 113, 188)
HSL	hsl(220, 46%, 52%)
HSV	hsv(220, 60%, 74%)
CMYK	cmyk(60.1%, 39.9%, 0%, 26.3%)
CIE-LAB	lab(48.18, 9.86, -43.54)
CIE-LCH	lch(48.18, 44.64, 282.77°)
OKLab	oklab(55.64% -0.0158 -0.1237)
OKLCH	oklch(55.64% 0.125 262.7)
XYZ	xyz(17.8807, 16.9354, 49.8938)
Luminance	0.1694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B71BC #BC964B

analogous

#4BAABC #4B71BC #5E4BBC

triadic

#4B71BC #BC4B71 #71BC4B

tetradic

#4B71BC #BC4BAA #BC964B #4BBC5E

square

#4B71BC #BC4BAA #BC964B #4BBC5E

split-complementary

#4B71BC #BC5E4B #AABC4B

monochromatic

#263C66 #375693 #4B71BC #7894CD #A4B7DD

Accessibility & contrast

On white

4.79

#4B71BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#4B71BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B71BC

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B71BC	#FFFFFF	#000000	##FFFFFF
##4B71BC	1.00	4.79	4.39	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5178BF

Deuteranopia (green-blind)

#416EBA

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4b71bc;
/* rgb */ color: rgb(75, 113, 188);
/* oklch */ color: oklch(55.6% 0.125 262.7);

Tailwind

colors: {
  custom: {
    50: '#8799d0',
    500: '#4b71bc',
    950: '#000000',
  },
}

SCSS

$custom: #4b71bc;
$custom-light: #8799d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b71bc",
  "rgb": {
    "r": 75,
    "g": 113,
    "b": 188
  },
  "hsl": {
    "h": 219.823,
    "s": 45.749,
    "l": 51.569
  },
  "oklch": {
    "l": 0.55643,
    "c": 0.12471,
    "h": 262.7
  },
  "luminance": 0.16937
}

Semantic roles & 50–950 ramp

primary

#4B71BC

secondary

#CABA99

accent

#A952D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4B71BC

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

Preview Lab → · Contrast checker → · Palette generator →