#5177DB#5177DB

#5177DB is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.2% C 0.158 H 266.1°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#5177DB
RGB	rgb(81, 119, 219)
HSL	hsl(223, 66%, 59%)
HSV	hsv(223, 63%, 86%)
CMYK	cmyk(63%, 45.7%, 0%, 14.1%)
CIE-LAB	lab(51.90, 17.87, -55.28)
CIE-LCH	lch(51.90, 58.10, 287.92°)
OKLab	oklab(59.16% -0.0109 -0.158)
OKLCH	oklch(59.16% 0.158 266.1)
XYZ	xyz(22.7719, 20.0554, 69.6751)
Luminance	0.2006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5177DB #DBB551

analogous

#51BCDB #5177DB #7051DB

triadic

#5177DB #DB5177 #77DB51

tetradic

#5177DB #DB51BC #DBB551 #51DB70

square

#5177DB #DB51BC #DBB551 #51DB70

split-complementary

#5177DB #DB7051 #BCDB51

monochromatic

#1E3F93 #2954C6 #5177DB #849FE5 #B6C6F0

Accessibility & contrast

On white

4.19

#5177DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#5177DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5177DB

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5177DB	#FFFFFF	#000000	##000000
##5177DB	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4682DF

Deuteranopia (green-blind)

#2E76D9

Tritanopia (blue-blind)

#008E9E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #5177db;
/* rgb */ color: rgb(81, 119, 219);
/* oklch */ color: oklch(59.2% 0.158 266.1);

Tailwind

colors: {
  custom: {
    50: '#8e9de7',
    500: '#5177db',
    950: '#000000',
  },
}

SCSS

$custom: #5177db;
$custom-light: #8e9de7;
$custom-dark: #000000;

JSON

{
  "hex": "#5177db",
  "rgb": {
    "r": 81,
    "g": 119,
    "b": 219
  },
  "hsl": {
    "h": 223.478,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.59161,
    "c": 0.15834,
    "h": 266.1
  },
  "luminance": 0.20057
}

Semantic roles & 50–950 ramp

primary

#5177DB

secondary

#DFD0A9

accent

#BA3FE9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #5177DB

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

Preview Lab → · Contrast checker → · Palette generator →