#51B2D2#51B2D2

#51B2D2 is a light, moderate cyan. Relative luminance 0.382; OKLCH L 71.8% C 0.101 H 222.7°. Best body text is #000000 at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#51B2D2
RGB	rgb(81, 178, 210)
HSL	hsl(195, 59%, 57%)
HSV	hsv(195, 61%, 82%)
CMYK	cmyk(61.4%, 15.2%, 0%, 17.6%)
CIE-LAB	lab(68.20, -18.96, -24.70)
CIE-LCH	lch(68.20, 31.14, 232.49°)
OKLab	oklab(71.82% -0.0746 -0.0688)
OKLCH	oklch(71.82% 0.101 222.7)
XYZ	xyz(30.9420, 38.2401, 66.7107)
Luminance	0.3824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B2D2 #D27151

analogous

#51D2B2 #51B2D2 #5172D2

triadic

#51B2D2 #D251B2 #B2D251

tetradic

#51B2D2 #B251D2 #D27151 #72D251

square

#51B2D2 #B251D2 #D27151 #72D251

split-complementary

#51B2D2 #D25172 #D2B251

monochromatic

#236D86 #2F95B7 #51B2D2 #82C8DF #B2DDEB

Accessibility & contrast

On white

2.43

#51B2D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.65

#51B2D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B2D2

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B2D2	#FFFFFF	#000000	##000000
##51B2D2	1.00	2.43	8.65	8.65
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.65	21.00	1.00	1.00
##000000	8.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FAED4

Deuteranopia (green-blind)

#8DA0D2

Tritanopia (blue-blind)

#00BCBC

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #51b2d2;
/* rgb */ color: rgb(81, 178, 210);
/* oklch */ color: oklch(71.8% 0.101 222.7);

Tailwind

colors: {
  custom: {
    50: '#8ec9df',
    500: '#51b2d2',
    950: '#000000',
  },
}

SCSS

$custom: #51b2d2;
$custom-light: #8ec9df;
$custom-dark: #000000;

JSON

{
  "hex": "#51b2d2",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 210
  },
  "hsl": {
    "h": 194.884,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.71816,
    "c": 0.10145,
    "h": 222.7
  },
  "luminance": 0.38243
}

Semantic roles & 50–950 ramp

primary

#51B2D2

secondary

#DAB2A5

accent

#6C46E2

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51B2D2

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

Preview Lab → · Contrast checker → · Palette generator →