#51CAE3#51CAE3

#51CAE3 is a light, moderate cyan. Relative luminance 0.495; OKLCH L 78.1% C 0.112 H 213.8°. Best body text is #000000 at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#51CAE3
RGB	rgb(81, 202, 227)
HSL	hsl(190, 72%, 60%)
HSV	hsv(190, 64%, 89%)
CMYK	cmyk(64.3%, 11%, 0%, 11%)
CIE-LAB	lab(75.78, -26.06, -22.37)
CIE-LCH	lch(75.78, 34.35, 220.64°)
OKLab	oklab(78.1% -0.0929 -0.0622)
OKLCH	oklch(78.1% 0.112 213.8)
XYZ	xyz(38.3732, 49.5323, 80.1965)
Luminance	0.4954 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CAE3 #E36A51

analogous

#51E3B3 #51CAE3 #5181E3

triadic

#51CAE3 #E351CA #CAE351

tetradic

#51CAE3 #B351E3 #E36A51 #81E351

square

#51CAE3 #B351E3 #E36A51 #81E351

split-complementary

#51CAE3 #E35181 #E3B351

monochromatic

#1A89A0 #22B6D5 #51CAE3 #86DAEB #BAEAF4

Accessibility & contrast

On white

1.93

#51CAE3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.91

#51CAE3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CAE3

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CAE3	#FFFFFF	#000000	##000000
##51CAE3	1.00	1.93	10.91	10.91
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.91	21.00	1.00	1.00
##000000	10.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8C4E4

Deuteranopia (green-blind)

#A2B4E3

Tritanopia (blue-blind)

#00D4D2

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #51cae3;
/* rgb */ color: rgb(81, 202, 227);
/* oklch */ color: oklch(78.1% 0.112 213.8);

Tailwind

colors: {
  custom: {
    50: '#91daeb',
    500: '#51cae3',
    950: '#000000',
  },
}

SCSS

$custom: #51cae3;
$custom-light: #91daeb;
$custom-dark: #000000;

JSON

{
  "hex": "#51cae3",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 227
  },
  "hsl": {
    "h": 190.274,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.78097,
    "c": 0.11176,
    "h": 213.8
  },
  "luminance": 0.49536
}

Semantic roles & 50–950 ramp

primary

#51CAE3

secondary

#E4B6AC

accent

#3311D4

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1516

muted

#7E8384

Preview Lab

Preview with #51CAE3

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

Preview Lab → · Contrast checker → · Palette generator →