#51AED3#51AED3

#51AED3 is a light, moderate cyan. Relative luminance 0.367; OKLCH L 70.9% C 0.103 H 227.1°. Best body text is #000000 at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#51AED3
RGB	rgb(81, 174, 211)
HSL	hsl(197, 60%, 57%)
HSV	hsv(197, 62%, 83%)
CMYK	cmyk(61.6%, 17.5%, 0%, 17.3%)
CIE-LAB	lab(67.07, -16.55, -26.98)
CIE-LCH	lch(67.07, 31.66, 238.47°)
OKLab	oklab(70.93% -0.07 -0.0753)
OKLCH	oklch(70.93% 0.103 227.1)
XYZ	xyz(30.2826, 36.7215, 67.1074)
Luminance	0.3673 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AED3 #D37651

analogous

#51D3B7 #51AED3 #516DD3

triadic

#51AED3 #D351AE #AED351

tetradic

#51AED3 #B751D3 #D37651 #6DD351

square

#51AED3 #B751D3 #D37651 #6DD351

split-complementary

#51AED3 #D3516D #D3B751

monochromatic

#226B87 #2F91B8 #51AED3 #82C5DF #B3DBEC

Accessibility & contrast

On white

2.52

#51AED3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.34

#51AED3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AED3

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AED3	#FFFFFF	#000000	##000000
##51AED3	1.00	2.52	8.34	8.34
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.34	21.00	1.00	1.00
##000000	8.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AABD5

Deuteranopia (green-blind)

#889DD3

Tritanopia (blue-blind)

#00B9BA

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51aed3;
/* rgb */ color: rgb(81, 174, 211);
/* oklch */ color: oklch(70.9% 0.103 227.1);

Tailwind

colors: {
  custom: {
    50: '#8ec6e0',
    500: '#51aed3',
    950: '#000000',
  },
}

SCSS

$custom: #51aed3;
$custom-light: #8ec6e0;
$custom-dark: #000000;

JSON

{
  "hex": "#51aed3",
  "rgb": {
    "r": 81,
    "g": 174,
    "b": 211
  },
  "hsl": {
    "h": 197.077,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.70926,
    "c": 0.10279,
    "h": 227.1
  },
  "luminance": 0.36725
}

Semantic roles & 50–950 ramp

primary

#51AED3

secondary

#DAB5A6

accent

#7245E3

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51AED3

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

Preview Lab → · Contrast checker → · Palette generator →