#51BAE3#51BAE3

#51BAE3 is a light, moderate cyan. Relative luminance 0.424; OKLCH L 74.4% C 0.112 H 227.1°. Best body text is #000000 at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#51BAE3
RGB	rgb(81, 186, 227)
HSL	hsl(197, 72%, 60%)
HSV	hsv(197, 64%, 89%)
CMYK	cmyk(64.3%, 18.1%, 0%, 11%)
CIE-LAB	lab(71.15, -17.92, -29.46)
CIE-LCH	lch(71.15, 34.48, 238.69°)
OKLab	oklab(74.39% -0.0766 -0.0823)
OKLCH	oklch(74.39% 0.112 227.1)
XYZ	xyz(34.8119, 42.4095, 79.0094)
Luminance	0.4241 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BAE3 #E37A51

analogous

#51E3C3 #51BAE3 #5171E3

triadic

#51BAE3 #E351BA #BAE351

tetradic

#51BAE3 #C351E3 #E37A51 #71E351

square

#51BAE3 #C351E3 #E37A51 #71E351

split-complementary

#51BAE3 #E35171 #E3C351

monochromatic

#1A7AA0 #22A2D5 #51BAE3 #86CFEB #BAE4F4

Accessibility & contrast

On white

2.21

#51BAE3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.48

#51BAE3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BAE3

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BAE3	#FFFFFF	#000000	##000000
##51BAE3	1.00	2.21	9.48	9.48
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.48	21.00	1.00	1.00
##000000	9.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B7E5

Deuteranopia (green-blind)

#90A8E3

Tritanopia (blue-blind)

#00C6C7

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #51bae3;
/* rgb */ color: rgb(81, 186, 227);
/* oklch */ color: oklch(74.4% 0.112 227.1);

Tailwind

colors: {
  custom: {
    50: '#90ceec',
    500: '#51bae3',
    950: '#000000',
  },
}

SCSS

$custom: #51bae3;
$custom-light: #90ceec;
$custom-dark: #000000;

JSON

{
  "hex": "#51bae3",
  "rgb": {
    "r": 81,
    "g": 186,
    "b": 227
  },
  "hsl": {
    "h": 196.849,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.74387,
    "c": 0.11245,
    "h": 227.1
  },
  "luminance": 0.42413
}

Semantic roles & 50–950 ramp

primary

#51BAE3

secondary

#E4BCAC

accent

#4811D4

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #51BAE3

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

Preview Lab → · Contrast checker → · Palette generator →