#5177CB#5177CB

#5177CB is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.2% C 0.136 H 264.3°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#5177CB
RGB	rgb(81, 119, 203)
HSL	hsl(221, 54%, 56%)
HSV	hsv(221, 60%, 80%)
CMYK	cmyk(60.1%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(50.98, 12.43, -47.67)
CIE-LCH	lch(50.98, 49.26, 284.61°)
OKLab	oklab(58.16% -0.0136 -0.1356)
OKLCH	oklch(58.16% 0.136 264.3)
XYZ	xyz(20.7659, 19.2530, 59.1102)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5177CB #CBA551

analogous

#51B4CB #5177CB #6851CB

triadic

#5177CB #CB5177 #77CB51

tetradic

#5177CB #CB51B4 #CBA551 #51CB68

square

#5177CB #CB51B4 #CBA551 #51CB68

split-complementary

#5177CB #CB6851 #B4CB51

monochromatic

#25407C #3359AC #5177CB #809CD9 #AFC1E7

Accessibility & contrast

On white

4.33

#5177CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#5177CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5177CB

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5177CB	#FFFFFF	#000000	##000000
##5177CB	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#527FCE

Deuteranopia (green-blind)

#4174C9

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5177cb;
/* rgb */ color: rgb(81, 119, 203);
/* oklch */ color: oklch(58.2% 0.136 264.3);

Tailwind

colors: {
  custom: {
    50: '#8c9ddb',
    500: '#5177cb',
    950: '#000000',
  },
}

SCSS

$custom: #5177cb;
$custom-light: #8c9ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#5177cb",
  "rgb": {
    "r": 81,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 221.311,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.58159,
    "c": 0.13632,
    "h": 264.3
  },
  "luminance": 0.19255
}

Semantic roles & 50–950 ramp

primary

#5177CB

secondary

#D5C5A3

accent

#B04ADD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5177CB

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

Preview Lab → · Contrast checker → · Palette generator →