#5191E9#5191E9

#5191E9 is a light, vivid cyan. Relative luminance 0.279; OKLCH L 65.5% C 0.148 H 256.8°. Best body text is #000000 at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#5191E9
RGB	rgb(81, 145, 233)
HSL	hsl(215, 78%, 62%)
HSV	hsv(215, 65%, 91%)
CMYK	cmyk(65.2%, 37.8%, 0%, 8.6%)
CIE-LAB	lab(59.78, 6.93, -50.54)
CIE-LCH	lch(59.78, 51.01, 277.80°)
OKLab	oklab(65.5% -0.0336 -0.1437)
OKLCH	oklch(65.5% 0.148 256.8)
XYZ	xyz(28.2214, 27.8805, 80.9692)
Luminance	0.2788 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5191E9 #E9A951

analogous

#51DDE9 #5191E9 #5D51E9

triadic

#5191E9 #E95191 #91E951

tetradic

#5191E9 #E951DD #E9A951 #51E95D

square

#5191E9 #E951DD #E9A951 #51E95D

split-complementary

#5191E9 #E95D51 #DDE951

monochromatic

#1654AA #1C6FE0 #5191E9 #87B3F0 #BED6F7

Accessibility & contrast

On white

3.19

#5191E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.58

#5191E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5191E9

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5191E9	#FFFFFF	#000000	##000000
##5191E9	1.00	3.19	6.58	6.58
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.58	21.00	1.00	1.00
##000000	6.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A98ED

Deuteranopia (green-blind)

#5489E7

Tritanopia (blue-blind)

#00A5B2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5191e9;
/* rgb */ color: rgb(81, 145, 233);
/* oklch */ color: oklch(65.5% 0.148 256.8);

Tailwind

colors: {
  custom: {
    50: '#90b0f0',
    500: '#5191e9',
    950: '#000000',
  },
}

SCSS

$custom: #5191e9;
$custom-light: #90b0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5191e9",
  "rgb": {
    "r": 81,
    "g": 145,
    "b": 233
  },
  "hsl": {
    "h": 214.737,
    "s": 77.551,
    "l": 61.569
  },
  "oklch": {
    "l": 0.65498,
    "c": 0.1476,
    "h": 256.8
  },
  "luminance": 0.27883
}

Semantic roles & 50–950 ramp

primary

#5191E9

secondary

#E7CFAF

accent

#830CDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5191E9

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

Preview Lab → · Contrast checker → · Palette generator →