#5188DB#5188DB

#5188DB is a light, vivid blue. Relative luminance 0.245; OKLCH L 62.8% C 0.139 H 258.4°. Best body text is #000000 at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#5188DB
RGB	rgb(81, 136, 219)
HSL	hsl(216, 66%, 59%)
HSV	hsv(216, 63%, 86%)
CMYK	cmyk(63%, 37.9%, 0%, 14.1%)
CIE-LAB	lab(56.56, 7.53, -47.86)
CIE-LCH	lch(56.56, 48.45, 278.94°)
OKLab	oklab(62.75% -0.0279 -0.136)
OKLCH	oklch(62.75% 0.139 258.4)
XYZ	xyz(24.9791, 24.4698, 70.4108)
Luminance	0.2447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188DB #DBA451

analogous

#51CDDB #5188DB #5F51DB

triadic

#5188DB #DB5188 #88DB51

tetradic

#5188DB #DB51CD #DBA451 #51DB5F

square

#5188DB #DB51CD #DBA451 #51DB5F

split-complementary

#5188DB #DB5F51 #CDDB51

monochromatic

#1E4D93 #2967C6 #5188DB #84ABE5 #B6CDF0

Accessibility & contrast

On white

3.56

#5188DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.89

#5188DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188DB

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188DB	#FFFFFF	#000000	##000000
##5188DB	1.00	3.56	5.89	5.89
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.89	21.00	1.00	1.00
##000000	5.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#648FDE

Deuteranopia (green-blind)

#5082D9

Tritanopia (blue-blind)

#009BA7

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #5188db;
/* rgb */ color: rgb(81, 136, 219);
/* oklch */ color: oklch(62.8% 0.139 258.4);

Tailwind

colors: {
  custom: {
    50: '#8eaae6',
    500: '#5188db',
    950: '#000000',
  },
}

SCSS

$custom: #5188db;
$custom-light: #8eaae6;
$custom-dark: #000000;

JSON

{
  "hex": "#5188db",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 219
  },
  "hsl": {
    "h": 216.087,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.62753,
    "c": 0.13879,
    "h": 258.4
  },
  "luminance": 0.24472
}

Semantic roles & 50–950 ramp

primary

#5188DB

secondary

#DFC9A9

accent

#A53FE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #5188DB

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

Preview Lab → · Contrast checker → · Palette generator →