#5177CC#5177CC

#5177CC is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.2% C 0.138 H 264.4°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#5177CC
RGB	rgb(81, 119, 204)
HSL	hsl(221, 55%, 56%)
HSV	hsv(221, 60%, 80%)
CMYK	cmyk(60.3%, 41.7%, 0%, 20%)
CIE-LAB	lab(51.04, 12.77, -48.15)
CIE-LCH	lch(51.04, 49.81, 284.85°)
OKLab	oklab(58.22% -0.0135 -0.137)
OKLCH	oklch(58.22% 0.138 264.4)
XYZ	xyz(20.8855, 19.3008, 59.7398)
Luminance	0.1930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5177CC #CCA651

analogous

#51B5CC #5177CC #6851CC

triadic

#5177CC #CC5177 #77CC51

tetradic

#5177CC #CC51B5 #CCA651 #51CC68

square

#5177CC #CC51B5 #CCA651 #51CC68

split-complementary

#5177CC #CC6851 #B5CC51

monochromatic

#25407E #3359AD #5177CC #809CDA #B0C1E8

Accessibility & contrast

On white

4.32

#5177CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#5177CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5177CC

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5177CC	#FFFFFF	#000000	##000000
##5177CC	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5180CF

Deuteranopia (green-blind)

#4074CA

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #5177cc;
/* rgb */ color: rgb(81, 119, 204);
/* oklch */ color: oklch(58.2% 0.138 264.4);

Tailwind

colors: {
  custom: {
    50: '#8c9ddc',
    500: '#5177cc',
    950: '#000000',
  },
}

SCSS

$custom: #5177cc;
$custom-light: #8c9ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#5177cc",
  "rgb": {
    "r": 81,
    "g": 119,
    "b": 204
  },
  "hsl": {
    "h": 221.463,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.58219,
    "c": 0.1377,
    "h": 264.4
  },
  "luminance": 0.19303
}

Semantic roles & 50–950 ramp

primary

#5177CC

secondary

#D6C6A3

accent

#B04ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5177CC

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

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