#51BEEC#51BEEC

#51BEEC is a light, moderate cyan. Relative luminance 0.446; OKLCH L 75.7% C 0.118 H 229.2°. Best body text is #000000 at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#51BEEC
RGB	rgb(81, 190, 236)
HSL	hsl(198, 80%, 62%)
HSV	hsv(198, 66%, 93%)
CMYK	cmyk(65.7%, 19.5%, 0%, 7.5%)
CIE-LAB	lab(72.65, -17.21, -32.04)
CIE-LCH	lch(72.65, 36.37, 241.76°)
OKLab	oklab(75.69% -0.0774 -0.0897)
OKLCH	oklch(75.69% 0.118 229.2)
XYZ	xyz(36.9411, 44.6284, 86.0079)
Luminance	0.4463 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BEEC #EC7F51

analogous

#51ECCC #51BEEC #5171EC

triadic

#51BEEC #EC51BE #BEEC51

tetradic

#51BEEC #CC51EC #EC7F51 #71EC51

square

#51BEEC #CC51EC #EC7F51 #71EC51

split-complementary

#51BEEC #EC5171 #ECCC51

monochromatic

#1381AF #1AA9E6 #51BEEC #88D3F2 #BFE7F8

Accessibility & contrast

On white

2.12

#51BEEC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.93

#51BEEC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BEEC

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BEEC	#FFFFFF	#000000	##000000
##51BEEC	1.00	2.12	9.93	9.93
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.93	21.00	1.00	1.00
##000000	9.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6BBEE

Deuteranopia (green-blind)

#91ABEB

Tritanopia (blue-blind)

#00CBCD

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #51beec;
/* rgb */ color: rgb(81, 190, 236);
/* oklch */ color: oklch(75.7% 0.118 229.2);

Tailwind

colors: {
  custom: {
    50: '#92d1f2',
    500: '#51beec',
    950: '#000000',
  },
}

SCSS

$custom: #51beec;
$custom-light: #92d1f2;
$custom-dark: #000000;

JSON

{
  "hex": "#51beec",
  "rgb": {
    "r": 81,
    "g": 190,
    "b": 236
  },
  "hsl": {
    "h": 197.806,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.75694,
    "c": 0.11848,
    "h": 229.2
  },
  "luminance": 0.44632
}

Semantic roles & 50–950 ramp

primary

#51BEEC

secondary

#E9C1B0

accent

#4809DD

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1417

muted

#7E8285

Preview Lab

Preview with #51BEEC

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

Preview Lab → · Contrast checker → · Palette generator →