#51A6E6#51A6E6

#51A6E6 is a light, vivid cyan. Relative luminance 0.347; OKLCH L 70.0% C 0.125 H 243.8°. Best body text is #000000 at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#51A6E6
RGB	rgb(81, 166, 230)
HSL	hsl(206, 75%, 61%)
HSV	hsv(206, 65%, 90%)
CMYK	cmyk(64.8%, 27.8%, 0%, 9.8%)
CIE-LAB	lab(65.54, -6.16, -39.81)
CIE-LCH	lch(65.54, 40.28, 261.21°)
OKLab	oklab(69.97% -0.0553 -0.1122)
OKLCH	oklch(69.97% 0.125 243.8)
XYZ	xyz(31.3071, 34.7317, 79.9016)
Luminance	0.3473 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A6E6 #E69151

analogous

#51E6DB #51A6E6 #515BE6

triadic

#51A6E6 #E651A6 #A6E651

tetradic

#51A6E6 #DB51E6 #E69151 #5BE651

square

#51A6E6 #DB51E6 #E69151 #5BE651

split-complementary

#51A6E6 #E6515B #E6DB51

monochromatic

#1868A5 #1F8ADA #51A6E6 #87C1EE #BCDDF5

Accessibility & contrast

On white

2.64

#51A6E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.95

#51A6E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A6E6

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A6E6	#FFFFFF	#000000	##000000
##51A6E6	1.00	2.64	7.95	7.95
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.95	21.00	1.00	1.00
##000000	7.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#89A7E9

Deuteranopia (green-blind)

#7599E5

Tritanopia (blue-blind)

#00B6BC

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #51a6e6;
/* rgb */ color: rgb(81, 166, 230);
/* oklch */ color: oklch(70.0% 0.125 243.8);

Tailwind

colors: {
  custom: {
    50: '#90c0ee',
    500: '#51a6e6',
    950: '#000000',
  },
}

SCSS

$custom: #51a6e6;
$custom-light: #90c0ee;
$custom-dark: #000000;

JSON

{
  "hex": "#51a6e6",
  "rgb": {
    "r": 81,
    "g": 166,
    "b": 230
  },
  "hsl": {
    "h": 205.772,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.69968,
    "c": 0.12511,
    "h": 243.8
  },
  "luminance": 0.34735
}

Semantic roles & 50–950 ramp

primary

#51A6E6

secondary

#E5C5AD

accent

#650ED7

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51A6E6

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

Preview Lab → · Contrast checker → · Palette generator →