#51AED1#51AED1

#51AED1 is a light, moderate cyan. Relative luminance 0.366; OKLCH L 70.8% C 0.101 H 225.7°. Best body text is #000000 at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#51AED1
RGB	rgb(81, 174, 209)
HSL	hsl(196, 58%, 57%)
HSV	hsv(196, 61%, 82%)
CMYK	cmyk(61.2%, 16.7%, 0%, 18%)
CIE-LAB	lab(66.99, -17.17, -26.00)
CIE-LCH	lch(66.99, 31.15, 236.56°)
OKLab	oklab(70.84% -0.0707 -0.0725)
OKLCH	oklch(70.84% 0.101 225.7)
XYZ	xyz(30.0335, 36.6219, 65.7952)
Luminance	0.3663 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AED1 #D17451

analogous

#51D1B4 #51AED1 #516ED1

triadic

#51AED1 #D151AE #AED151

tetradic

#51AED1 #B451D1 #D17451 #6ED151

square

#51AED1 #B451D1 #D17451 #6ED151

split-complementary

#51AED1 #D1516E #D1B451

monochromatic

#236A85 #3091B5 #51AED1 #81C5DE #B2DBEB

Accessibility & contrast

On white

2.52

#51AED1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.32

#51AED1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AED1

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AED1	#FFFFFF	#000000	##000000
##51AED1	1.00	2.52	8.32	8.32
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.32	21.00	1.00	1.00
##000000	8.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BABD3

Deuteranopia (green-blind)

#899DD1

Tritanopia (blue-blind)

#00B8B9

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51aed1;
/* rgb */ color: rgb(81, 174, 209);
/* oklch */ color: oklch(70.8% 0.101 225.7);

Tailwind

colors: {
  custom: {
    50: '#8ec6df',
    500: '#51aed1',
    950: '#000000',
  },
}

SCSS

$custom: #51aed1;
$custom-light: #8ec6df;
$custom-dark: #000000;

JSON

{
  "hex": "#51aed1",
  "rgb": {
    "r": 81,
    "g": 174,
    "b": 209
  },
  "hsl": {
    "h": 196.406,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.70841,
    "c": 0.10127,
    "h": 225.7
  },
  "luminance": 0.36625
}

Semantic roles & 50–950 ramp

primary

#51AED1

secondary

#D9B3A5

accent

#7146E1

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51AED1

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

Preview Lab → · Contrast checker → · Palette generator →