#5188DD#5188DD

#5188DD is a light, vivid blue. Relative luminance 0.246; OKLCH L 62.9% C 0.141 H 258.8°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#5188DD
RGB	rgb(81, 136, 221)
HSL	hsl(216, 67%, 59%)
HSV	hsv(216, 63%, 87%)
CMYK	cmyk(63.3%, 38.5%, 0%, 13.3%)
CIE-LAB	lab(56.66, 8.21, -48.81)
CIE-LCH	lch(56.66, 49.50, 279.55°)
OKLab	oklab(62.87% -0.0274 -0.1388)
OKLCH	oklch(62.87% 0.141 258.8)
XYZ	xyz(25.2440, 24.5757, 71.8058)
Luminance	0.2458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188DD #DDA651

analogous

#51CEDD #5188DD #6051DD

triadic

#5188DD #DD5188 #88DD51

tetradic

#5188DD #DD51CE #DDA651 #51DD60

square

#5188DD #DD51CE #DDA651 #51DD60

split-complementary

#5188DD #DD6051 #CEDD51

monochromatic

#1D4D96 #2767C9 #5188DD #84ABE7 #B7CEF1

Accessibility & contrast

On white

3.55

#5188DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#5188DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188DD

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188DD	#FFFFFF	#000000	##000000
##5188DD	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#638FE0

Deuteranopia (green-blind)

#4F82DB

Tritanopia (blue-blind)

#009BA8

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #5188dd;
/* rgb */ color: rgb(81, 136, 221);
/* oklch */ color: oklch(62.9% 0.141 258.8);

Tailwind

colors: {
  custom: {
    50: '#8eaae8',
    500: '#5188dd',
    950: '#000000',
  },
}

SCSS

$custom: #5188dd;
$custom-light: #8eaae8;
$custom-dark: #000000;

JSON

{
  "hex": "#5188dd",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 221
  },
  "hsl": {
    "h": 216.429,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.62868,
    "c": 0.14145,
    "h": 258.8
  },
  "luminance": 0.24578
}

Semantic roles & 50–950 ramp

primary

#5188DD

secondary

#E0CBAA

accent

#A63EEA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #5188DD

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

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