#5186FE#5186FE

#5186FE is a light, vivid blue. Relative luminance 0.260; OKLCH L 64.5% C 0.187 H 264.0°. Best body text is #000000 at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#5186FE
RGB	rgb(81, 134, 254)
HSL	hsl(222, 99%, 66%)
HSV	hsv(222, 68%, 100%)
CMYK	cmyk(68.1%, 47.2%, 0%, 0.4%)
CIE-LAB	lab(57.99, 20.75, -64.99)
CIE-LCH	lch(57.99, 68.22, 287.71°)
OKLab	oklab(64.5% -0.0197 -0.1863)
OKLCH	oklch(64.5% 0.187 264)
XYZ	xyz(29.8015, 25.9523, 97.1854)
Luminance	0.2596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5186FE #FEC951

analogous

#51DDFE #5186FE #7251FE

triadic

#5186FE #FE5186 #86FE51

tetradic

#5186FE #FE51DD #FEC951 #51FE72

square

#5186FE #FE51DD #FEC951 #51FE72

split-complementary

#5186FE #FE7251 #DDFE51

monochromatic

#0142D3 #145CFE #5186FE #8EB0FE #CBDBFF

Accessibility & contrast

On white

3.39

#5186FE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.19

#5186FE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5186FE

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5186FE	#FFFFFF	#000000	##000000
##5186FE	1.00	3.39	6.19	6.19
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.19	21.00	1.00	1.00
##000000	6.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4694FF

Deuteranopia (green-blind)

#1984FC

Tritanopia (blue-blind)

#00A2B6

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #5186fe;
/* rgb */ color: rgb(81, 134, 254);
/* oklch */ color: oklch(64.5% 0.187 264.0);

Tailwind

colors: {
  custom: {
    50: '#94a8ff',
    500: '#5186fe',
    950: '#000000',
  },
}

SCSS

$custom: #5186fe;
$custom-light: #94a8ff;
$custom-dark: #000000;

JSON

{
  "hex": "#5186fe",
  "rgb": {
    "r": 81,
    "g": 134,
    "b": 254
  },
  "hsl": {
    "h": 221.618,
    "s": 98.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.645,
    "c": 0.18737,
    "h": 264
  },
  "luminance": 0.25955
}

Semantic roles & 50–950 ramp

primary

#5186FE

secondary

#F2E1B9

accent

#9F00E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F0F18

muted

#7E7F86

Preview Lab

Preview with #5186FE

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

Preview Lab → · Contrast checker → · Palette generator →