#51BED9#51BED9

#51BED9 is a light, moderate cyan. Relative luminance 0.436; OKLCH L 74.9% C 0.106 H 216.9°. Best body text is #000000 at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#51BED9
RGB	rgb(81, 190, 217)
HSL	hsl(192, 64%, 58%)
HSV	hsv(192, 63%, 85%)
CMYK	cmyk(62.7%, 12.4%, 0%, 14.9%)
CIE-LAB	lab(71.95, -23.02, -22.80)
CIE-LCH	lch(71.95, 32.40, 224.72°)
OKLab	oklab(74.9% -0.0845 -0.0634)
OKLCH	oklch(74.9% 0.106 216.9)
XYZ	xyz(34.3261, 43.5824, 72.2354)
Luminance	0.4359 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BED9 #D96C51

analogous

#51D9B0 #51BED9 #517AD9

triadic

#51BED9 #D951BE #BED951

tetradic

#51BED9 #B051D9 #D96C51 #7AD951

square

#51BED9 #B051D9 #D96C51 #7AD951

split-complementary

#51BED9 #D9517A #D9B051

monochromatic

#1F7A90 #2AA4C2 #51BED9 #83D1E4 #B5E4EF

Accessibility & contrast

On white

2.16

#51BED9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.72

#51BED9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BED9

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BED9	#FFFFFF	#000000	##000000
##51BED9	1.00	2.16	9.72	9.72
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.72	21.00	1.00	1.00
##000000	9.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACB9DB

Deuteranopia (green-blind)

#98AAD9

Tritanopia (blue-blind)

#00C8C6

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #51bed9;
/* rgb */ color: rgb(81, 190, 217);
/* oklch */ color: oklch(74.9% 0.106 216.9);

Tailwind

colors: {
  custom: {
    50: '#90d1e4',
    500: '#51bed9',
    950: '#000000',
  },
}

SCSS

$custom: #51bed9;
$custom-light: #90d1e4;
$custom-dark: #000000;

JSON

{
  "hex": "#51bed9",
  "rgb": {
    "r": 81,
    "g": 190,
    "b": 217
  },
  "hsl": {
    "h": 191.912,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.74904,
    "c": 0.1056,
    "h": 216.9
  },
  "luminance": 0.43586
}

Semantic roles & 50–950 ramp

primary

#51BED9

secondary

#DEB3A8

accent

#6241E7

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1415

muted

#7E8283

Preview Lab

Preview with #51BED9

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

Preview Lab → · Contrast checker → · Palette generator →