#5191E8#5191E8

#5191E8 is a light, vivid cyan. Relative luminance 0.278; OKLCH L 65.4% C 0.146 H 256.6°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#5191E8
RGB	rgb(81, 145, 232)
HSL	hsl(215, 77%, 61%)
HSV	hsv(215, 65%, 91%)
CMYK	cmyk(65.1%, 37.5%, 0%, 9%)
CIE-LAB	lab(59.73, 6.59, -50.07)
CIE-LCH	lch(59.73, 50.50, 277.49°)
OKLab	oklab(65.44% -0.0338 -0.1423)
OKLCH	oklch(65.44% 0.146 256.6)
XYZ	xyz(28.0790, 27.8236, 80.2190)
Luminance	0.2783 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5191E8 #E8A851

analogous

#51DCE8 #5191E8 #5D51E8

triadic

#5191E8 #E85191 #91E851

tetradic

#5191E8 #E851DC #E8A851 #51E85D

square

#5191E8 #E851DC #E8A851 #51E85D

split-complementary

#5191E8 #E85D51 #DCE851

monochromatic

#1654A8 #1D6FDE #5191E8 #87B3EF #BDD5F6

Accessibility & contrast

On white

3.20

#5191E8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#5191E8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5191E8

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5191E8	#FFFFFF	#000000	##000000
##5191E8	1.00	3.20	6.57	6.57
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A98EC

Deuteranopia (green-blind)

#5589E6

Tritanopia (blue-blind)

#00A5B1

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5191e8;
/* rgb */ color: rgb(81, 145, 232);
/* oklch */ color: oklch(65.4% 0.146 256.6);

Tailwind

colors: {
  custom: {
    50: '#90b0f0',
    500: '#5191e8',
    950: '#000000',
  },
}

SCSS

$custom: #5191e8;
$custom-light: #90b0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5191e8",
  "rgb": {
    "r": 81,
    "g": 145,
    "b": 232
  },
  "hsl": {
    "h": 214.57,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.65441,
    "c": 0.14631,
    "h": 256.6
  },
  "luminance": 0.27826
}

Semantic roles & 50–950 ramp

primary

#5191E8

secondary

#E7CFAE

accent

#820DD9

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5191E8

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

Preview Lab → · Contrast checker → · Palette generator →