#51C4E6#51C4E6

#51C4E6 is a light, moderate cyan. Relative luminance 0.469; OKLCH L 76.8% C 0.113 H 220.8°. Best body text is #000000 at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#51C4E6
RGB	rgb(81, 196, 230)
HSL	hsl(194, 75%, 61%)
HSV	hsv(194, 65%, 90%)
CMYK	cmyk(64.8%, 14.8%, 0%, 9.8%)
CIE-LAB	lab(74.15, -22.15, -26.48)
CIE-LCH	lch(74.15, 34.53, 230.09°)
OKLab	oklab(76.82% -0.0856 -0.0738)
OKLCH	oklch(76.82% 0.113 220.8)
XYZ	xyz(37.4104, 46.9383, 81.9360)
Luminance	0.4694 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C4E6 #E67351

analogous

#51E6BD #51C4E6 #5179E6

triadic

#51C4E6 #E651C4 #C4E651

tetradic

#51C4E6 #BD51E6 #E67351 #79E651

square

#51C4E6 #BD51E6 #E67351 #79E651

split-complementary

#51C4E6 #E65179 #E6BD51

monochromatic

#1885A5 #1FB0DA #51C4E6 #87D6EE #BCE8F5

Accessibility & contrast

On white

2.02

#51C4E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.39

#51C4E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C4E6

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C4E6	#FFFFFF	#000000	##000000
##51C4E6	1.00	2.02	10.39	10.39
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.39	21.00	1.00	1.00
##000000	10.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0BFE8

Deuteranopia (green-blind)

#9AB0E6

Tritanopia (blue-blind)

#00CFCF

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #51c4e6;
/* rgb */ color: rgb(81, 196, 230);
/* oklch */ color: oklch(76.8% 0.113 220.8);

Tailwind

colors: {
  custom: {
    50: '#91d6ee',
    500: '#51c4e6',
    950: '#000000',
  },
}

SCSS

$custom: #51c4e6;
$custom-light: #91d6ee;
$custom-dark: #000000;

JSON

{
  "hex": "#51c4e6",
  "rgb": {
    "r": 81,
    "g": 196,
    "b": 230
  },
  "hsl": {
    "h": 193.691,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.76822,
    "c": 0.11306,
    "h": 220.8
  },
  "luminance": 0.46942
}

Semantic roles & 50–950 ramp

primary

#51C4E6

secondary

#E5BAAD

accent

#3C0ED7

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #51C4E6

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

Preview Lab → · Contrast checker → · Palette generator →