#5191DB#5191DB

#5191DB is a light, vivid cyan. Relative luminance 0.271; OKLCH L 64.7% C 0.130 H 253.4°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#5191DB
RGB	rgb(81, 145, 219)
HSL	hsl(212, 66%, 59%)
HSV	hsv(212, 63%, 86%)
CMYK	cmyk(63%, 33.8%, 0%, 14.1%)
CIE-LAB	lab(59.08, 2.21, -43.87)
CIE-LCH	lch(59.08, 43.92, 272.88°)
OKLab	oklab(64.72% -0.0371 -0.1242)
OKLCH	oklch(64.72% 0.13 253.4)
XYZ	xyz(26.3003, 27.1121, 70.8512)
Luminance	0.2712 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5191DB #DB9B51

analogous

#51D6DB #5191DB #5651DB

triadic

#5191DB #DB5191 #91DB51

tetradic

#5191DB #DB51D6 #DB9B51 #51DB56

square

#5191DB #DB51D6 #DB9B51 #51DB56

split-complementary

#5191DB #DB5651 #D6DB51

monochromatic

#1E5593 #2972C6 #5191DB #84B1E5 #B6D1F0

Accessibility & contrast

On white

3.27

#5191DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#5191DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5191DB

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5191DB	#FFFFFF	#000000	##000000
##5191DB	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7195DE

Deuteranopia (green-blind)

#5E88DA

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #5191db;
/* rgb */ color: rgb(81, 145, 219);
/* oklch */ color: oklch(64.7% 0.130 253.4);

Tailwind

colors: {
  custom: {
    50: '#8eb0e6',
    500: '#5191db',
    950: '#000000',
  },
}

SCSS

$custom: #5191db;
$custom-light: #8eb0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5191db",
  "rgb": {
    "r": 81,
    "g": 145,
    "b": 219
  },
  "hsl": {
    "h": 212.174,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.6472,
    "c": 0.12962,
    "h": 253.4
  },
  "luminance": 0.27115
}

Semantic roles & 50–950 ramp

primary

#5191DB

secondary

#DFC6A9

accent

#9A3FE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #5191DB

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

Preview Lab → · Contrast checker → · Palette generator →