#51CAE4#51CAE4

#51CAE4 is a light, moderate cyan. Relative luminance 0.496; OKLCH L 78.1% C 0.112 H 214.5°. Best body text is #000000 at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#51CAE4
RGB	rgb(81, 202, 228)
HSL	hsl(191, 73%, 61%)
HSV	hsv(191, 64%, 89%)
CMYK	cmyk(64.5%, 11.4%, 0%, 10.6%)
CIE-LAB	lab(75.82, -25.77, -22.86)
CIE-LCH	lch(75.82, 34.45, 221.58°)
OKLab	oklab(78.14% -0.0925 -0.0636)
OKLCH	oklch(78.14% 0.112 214.5)
XYZ	xyz(38.5117, 49.5877, 80.9255)
Luminance	0.4959 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CAE4 #E46B51

analogous

#51E4B4 #51CAE4 #5180E4

triadic

#51CAE4 #E451CA #CAE451

tetradic

#51CAE4 #B451E4 #E46B51 #80E451

square

#51CAE4 #B451E4 #E46B51 #80E451

split-complementary

#51CAE4 #E45180 #E4B451

monochromatic

#1989A2 #21B6D7 #51CAE4 #86DAEC #BBEAF4

Accessibility & contrast

On white

1.92

#51CAE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.92

#51CAE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CAE4

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CAE4	#FFFFFF	#000000	##000000
##51CAE4	1.00	1.92	10.92	10.92
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.92	21.00	1.00	1.00
##000000	10.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7C4E6

Deuteranopia (green-blind)

#A2B4E4

Tritanopia (blue-blind)

#00D4D2

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #51cae4;
/* rgb */ color: rgb(81, 202, 228);
/* oklch */ color: oklch(78.1% 0.112 214.5);

Tailwind

colors: {
  custom: {
    50: '#92daec',
    500: '#51cae4',
    950: '#000000',
  },
}

SCSS

$custom: #51cae4;
$custom-light: #92daec;
$custom-dark: #000000;

JSON

{
  "hex": "#51cae4",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 228
  },
  "hsl": {
    "h": 190.612,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.78135,
    "c": 0.11221,
    "h": 214.5
  },
  "luminance": 0.49592
}

Semantic roles & 50–950 ramp

primary

#51CAE4

secondary

#E4B6AC

accent

#3310D5

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1516

muted

#7E8384

Preview Lab

Preview with #51CAE4

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

Preview Lab → · Contrast checker → · Palette generator →