#5191DF#5191DF

#5191DF is a light, vivid cyan. Relative luminance 0.273; OKLCH L 64.9% C 0.135 H 254.5°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#5191DF
RGB	rgb(81, 145, 223)
HSL	hsl(213, 69%, 60%)
HSV	hsv(213, 64%, 87%)
CMYK	cmyk(63.7%, 35%, 0%, 12.5%)
CIE-LAB	lab(59.27, 3.55, -45.79)
CIE-LCH	lch(59.27, 45.92, 274.43°)
OKLab	oklab(64.94% -0.036 -0.1298)
OKLCH	oklch(64.94% 0.135 254.5)
XYZ	xyz(26.8332, 27.3252, 73.6579)
Luminance	0.2733 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5191DF #DF9F51

analogous

#51D8DF #5191DF #5851DF

triadic

#5191DF #DF5191 #91DF51

tetradic

#5191DF #DF51D8 #DF9F51 #51DF58

square

#5191DF #DF51D8 #DF9F51 #51DF58

split-complementary

#5191DF #DF5851 #D8DF51

monochromatic

#1C5599 #2671CD #5191DF #85B2E9 #B8D2F2

Accessibility & contrast

On white

3.25

#5191DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#5191DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5191DF

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5191DF	#FFFFFF	#000000	##000000
##5191DF	1.00	3.25	6.47	6.47
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F96E2

Deuteranopia (green-blind)

#5B89DD

Tritanopia (blue-blind)

#00A3AD

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #5191df;
/* rgb */ color: rgb(81, 145, 223);
/* oklch */ color: oklch(64.9% 0.135 254.5);

Tailwind

colors: {
  custom: {
    50: '#8fb0e9',
    500: '#5191df',
    950: '#000000',
  },
}

SCSS

$custom: #5191df;
$custom-light: #8fb0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5191df",
  "rgb": {
    "r": 81,
    "g": 145,
    "b": 223
  },
  "hsl": {
    "h": 212.958,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.64938,
    "c": 0.13473,
    "h": 254.5
  },
  "luminance": 0.27328
}

Semantic roles & 50–950 ramp

primary

#5191DF

secondary

#E1C9AA

accent

#9D3CEC

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #5191DF

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

Preview Lab → · Contrast checker → · Palette generator →