#4C73BB#4C73BB

#4C73BB is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.1% C 0.121 H 261.7°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4C73BB
RGB	rgb(76, 115, 187)
HSL	hsl(219, 45%, 52%)
HSV	hsv(219, 59%, 73%)
CMYK	cmyk(59.4%, 38.5%, 0%, 26.7%)
CIE-LAB	lab(48.74, 8.49, -42.07)
CIE-LCH	lch(48.74, 42.91, 281.41°)
OKLab	oklab(56.08% -0.0173 -0.1193)
OKLCH	oklch(56.08% 0.121 261.7)
XYZ	xyz(18.0778, 17.3843, 49.4069)
Luminance	0.1739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C73BB #BB944C

analogous

#4CABBB #4C73BB #5D4CBB

triadic

#4C73BB #BB4C73 #73BB4C

tetradic

#4C73BB #BB4CAB #BB944C #4CBB5D

square

#4C73BB #BB4CAB #BB944C #4CBB5D

split-complementary

#4C73BB #BB5D4C #ABBB4C

monochromatic

#273D66 #385792 #4C73BB #7896CC #A5B8DD

Accessibility & contrast

On white

4.69

#4C73BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#4C73BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C73BB

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C73BB	#FFFFFF	#000000	##FFFFFF
##4C73BB	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5479BE

Deuteranopia (green-blind)

#466FB9

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4c73bb;
/* rgb */ color: rgb(76, 115, 187);
/* oklch */ color: oklch(56.1% 0.121 261.7);

Tailwind

colors: {
  custom: {
    50: '#879ad0',
    500: '#4c73bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c73bb;
$custom-light: #879ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c73bb",
  "rgb": {
    "r": 76,
    "g": 115,
    "b": 187
  },
  "hsl": {
    "h": 218.919,
    "s": 44.939,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56075,
    "c": 0.1206,
    "h": 261.7
  },
  "luminance": 0.17386
}

Semantic roles & 50–950 ramp

primary

#4C73BB

secondary

#CAB999

accent

#A753D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4C73BB

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

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