#5191E0#5191E0

#5191E0 is a light, vivid cyan. Relative luminance 0.274; OKLCH L 65.0% C 0.136 H 254.8°. Best body text is #000000 at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#5191E0
RGB	rgb(81, 145, 224)
HSL	hsl(213, 70%, 60%)
HSV	hsv(213, 64%, 88%)
CMYK	cmyk(63.8%, 35.3%, 0%, 12.2%)
CIE-LAB	lab(59.32, 3.88, -46.27)
CIE-LCH	lch(59.32, 46.43, 274.80°)
OKLab	oklab(64.99% -0.0358 -0.1312)
OKLCH	oklch(64.99% 0.136 254.8)
XYZ	xyz(26.9684, 27.3793, 74.3701)
Luminance	0.2738 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5191E0 #E0A051

analogous

#51D8E0 #5191E0 #5951E0

triadic

#5191E0 #E05191 #91E051

tetradic

#5191E0 #E051D8 #E0A051 #51E059

square

#5191E0 #E051D8 #E0A051 #51E059

split-complementary

#5191E0 #E05951 #D8E051

monochromatic

#1C559B #2571CF #5191E0 #85B2E9 #B9D3F3

Accessibility & contrast

On white

3.24

#5191E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.48

#5191E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5191E0

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5191E0	#FFFFFF	#000000	##000000
##5191E0	1.00	3.24	6.48	6.48
#FFFFFF	3.24	1.00	21.00	21.00
#000000	6.48	21.00	1.00	1.00
##000000	6.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F96E3

Deuteranopia (green-blind)

#5B89DE

Tritanopia (blue-blind)

#00A3AE

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #5191e0;
/* rgb */ color: rgb(81, 145, 224);
/* oklch */ color: oklch(65.0% 0.136 254.8);

Tailwind

colors: {
  custom: {
    50: '#8fb0ea',
    500: '#5191e0',
    950: '#000000',
  },
}

SCSS

$custom: #5191e0;
$custom-light: #8fb0ea;
$custom-dark: #000000;

JSON

{
  "hex": "#5191e0",
  "rgb": {
    "r": 81,
    "g": 145,
    "b": 224
  },
  "hsl": {
    "h": 213.147,
    "s": 69.756,
    "l": 59.804
  },
  "oklch": {
    "l": 0.64993,
    "c": 0.13601,
    "h": 254.8
  },
  "luminance": 0.27382
}

Semantic roles & 50–950 ramp

primary

#5191E0

secondary

#E2C9AB

accent

#9D3BED

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5191E0

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

Preview Lab → · Contrast checker → · Palette generator →