#5188FC#5188FC

#5188FC is a light, vivid blue. Relative luminance 0.264; OKLCH L 64.8% C 0.182 H 263.2°. Best body text is #000000 at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#5188FC
RGB	rgb(81, 136, 252)
HSL	hsl(221, 97%, 65%)
HSV	hsv(221, 68%, 99%)
CMYK	cmyk(67.9%, 46%, 0%, 1.2%)
CIE-LAB	lab(58.40, 18.85, -63.24)
CIE-LCH	lch(58.40, 65.99, 286.59°)
OKLab	oklab(64.77% -0.0217 -0.1811)
OKLCH	oklch(64.77% 0.182 263.2)
XYZ	xyz(29.7620, 26.3829, 95.6005)
Luminance	0.2639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188FC #FCC551

analogous

#51DDFC #5188FC #7051FC

triadic

#5188FC #FC5188 #88FC51

tetradic

#5188FC #FC51DD #FCC551 #51FC70

square

#5188FC #FC51DD #FCC551 #51FC70

split-complementary

#5188FC #FC7051 #DDFC51

monochromatic

#0445CF #155FFB #5188FC #8DB1FD #C9DAFE

Accessibility & contrast

On white

3.35

#5188FC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.28

#5188FC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188FC

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188FC	#FFFFFF	#000000	##000000
##5188FC	1.00	3.35	6.28	6.28
#FFFFFF	3.35	1.00	21.00	21.00
#000000	6.28	21.00	1.00	1.00
##000000	6.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C95FF

Deuteranopia (green-blind)

#2785FA

Tritanopia (blue-blind)

#00A3B6

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #5188fc;
/* rgb */ color: rgb(81, 136, 252);
/* oklch */ color: oklch(64.8% 0.182 263.2);

Tailwind

colors: {
  custom: {
    50: '#93aafe',
    500: '#5188fc',
    950: '#000000',
  },
}

SCSS

$custom: #5188fc;
$custom-light: #93aafe;
$custom-dark: #000000;

JSON

{
  "hex": "#5188fc",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 252
  },
  "hsl": {
    "h": 220.702,
    "s": 96.61,
    "l": 65.294
  },
  "oklch": {
    "l": 0.64773,
    "c": 0.18243,
    "h": 263.2
  },
  "luminance": 0.26386
}

Semantic roles & 50–950 ramp

primary

#5188FC

secondary

#F1DFB8

accent

#9C00E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F0F18

muted

#7E7F86

Preview Lab

Preview with #5188FC

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

Preview Lab → · Contrast checker → · Palette generator →