#51AED2#51AED2

#51AED2 is a light, moderate cyan. Relative luminance 0.367; OKLCH L 70.9% C 0.102 H 226.4°. Best body text is #000000 at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#51AED2
RGB	rgb(81, 174, 210)
HSL	hsl(197, 59%, 57%)
HSV	hsv(197, 61%, 82%)
CMYK	cmyk(61.4%, 17.1%, 0%, 17.6%)
CIE-LAB	lab(67.03, -16.86, -26.49)
CIE-LCH	lch(67.03, 31.40, 237.53°)
OKLab	oklab(70.88% -0.0703 -0.0739)
OKLCH	oklch(70.88% 0.102 226.4)
XYZ	xyz(30.1577, 36.6715, 66.4493)
Luminance	0.3668 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AED2 #D27551

analogous

#51D2B5 #51AED2 #516ED2

triadic

#51AED2 #D251AE #AED251

tetradic

#51AED2 #B551D2 #D27551 #6ED251

square

#51AED2 #B551D2 #D27551 #6ED251

split-complementary

#51AED2 #D2516E #D2B551

monochromatic

#236A86 #2F91B7 #51AED2 #82C5DF #B2DBEB

Accessibility & contrast

On white

2.52

#51AED2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.33

#51AED2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AED2

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AED2	#FFFFFF	#000000	##000000
##51AED2	1.00	2.52	8.33	8.33
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.33	21.00	1.00	1.00
##000000	8.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BABD4

Deuteranopia (green-blind)

#889DD2

Tritanopia (blue-blind)

#00B9BA

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51aed2;
/* rgb */ color: rgb(81, 174, 210);
/* oklch */ color: oklch(70.9% 0.102 226.4);

Tailwind

colors: {
  custom: {
    50: '#8ec6e0',
    500: '#51aed2',
    950: '#000000',
  },
}

SCSS

$custom: #51aed2;
$custom-light: #8ec6e0;
$custom-dark: #000000;

JSON

{
  "hex": "#51aed2",
  "rgb": {
    "r": 81,
    "g": 174,
    "b": 210
  },
  "hsl": {
    "h": 196.744,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.70883,
    "c": 0.10202,
    "h": 226.4
  },
  "luminance": 0.36675
}

Semantic roles & 50–950 ramp

primary

#51AED2

secondary

#DAB4A5

accent

#7146E2

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51AED2

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

Preview Lab → · Contrast checker → · Palette generator →