#51BAD2#51BAD2

#51BAD2 is a light, moderate cyan. Relative luminance 0.415; OKLCH L 73.7% C 0.102 H 215.3°. Best body text is #000000 at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#51BAD2
RGB	rgb(81, 186, 210)
HSL	hsl(191, 59%, 57%)
HSV	hsv(191, 61%, 82%)
CMYK	cmyk(61.4%, 11.4%, 0%, 17.6%)
CIE-LAB	lab(70.54, -23.08, -21.13)
CIE-LCH	lch(70.54, 31.29, 222.48°)
OKLab	oklab(73.69% -0.083 -0.0587)
OKLCH	oklch(73.69% 0.102 215.3)
XYZ	xyz(32.5804, 41.5169, 67.2568)
Luminance	0.4152 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BAD2 #D26951

analogous

#51D2AA #51BAD2 #517AD2

triadic

#51BAD2 #D251BA #BAD251

tetradic

#51BAD2 #AA51D2 #D26951 #7AD251

square

#51BAD2 #AA51D2 #D26951 #7AD251

split-complementary

#51BAD2 #D2517A #D2AA51

monochromatic

#237386 #2F9DB7 #51BAD2 #82CDDF #B2E1EB

Accessibility & contrast

On white

2.26

#51BAD2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.30

#51BAD2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BAD2

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BAD2	#FFFFFF	#000000	##000000
##51BAD2	1.00	2.26	9.30	9.30
#FFFFFF	2.26	1.00	21.00	21.00
#000000	9.30	21.00	1.00	1.00
##000000	9.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B5D3

Deuteranopia (green-blind)

#96A6D2

Tritanopia (blue-blind)

#00C3C1

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #51bad2;
/* rgb */ color: rgb(81, 186, 210);
/* oklch */ color: oklch(73.7% 0.102 215.3);

Tailwind

colors: {
  custom: {
    50: '#8fcfdf',
    500: '#51bad2',
    950: '#000000',
  },
}

SCSS

$custom: #51bad2;
$custom-light: #8fcfdf;
$custom-dark: #000000;

JSON

{
  "hex": "#51bad2",
  "rgb": {
    "r": 81,
    "g": 186,
    "b": 210
  },
  "hsl": {
    "h": 191.163,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.7369,
    "c": 0.10166,
    "h": 215.3
  },
  "luminance": 0.4152
}

Semantic roles & 50–950 ramp

primary

#51BAD2

secondary

#DAAFA5

accent

#6346E2

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51BAD2

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

Preview Lab → · Contrast checker → · Palette generator →