#51AADF#51AADF

#51AADF is a light, moderate cyan. Relative luminance 0.358; OKLCH L 70.5% C 0.115 H 237.7°. Best body text is #000000 at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#51AADF
RGB	rgb(81, 170, 223)
HSL	hsl(202, 69%, 60%)
HSV	hsv(202, 64%, 87%)
CMYK	cmyk(63.7%, 23.8%, 0%, 12.5%)
CIE-LAB	lab(66.38, -10.63, -34.65)
CIE-LCH	lch(66.38, 36.24, 252.94°)
OKLab	oklab(70.54% -0.0616 -0.0973)
OKLCH	oklch(70.54% 0.115 237.7)
XYZ	xyz(31.0822, 35.8233, 75.0743)
Luminance	0.3583 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AADF #DF8651

analogous

#51DFCD #51AADF #5163DF

triadic

#51AADF #DF51AA #AADF51

tetradic

#51AADF #CD51DF #DF8651 #63DF51

square

#51AADF #CD51DF #DF8651 #63DF51

split-complementary

#51AADF #DF5163 #DFCD51

monochromatic

#1C6B99 #268FCD #51AADF #85C3E9 #B8DDF2

Accessibility & contrast

On white

2.57

#51AADF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.17

#51AADF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AADF

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AADF	#FFFFFF	#000000	##000000
##51AADF	1.00	2.57	8.17	8.17
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.17	21.00	1.00	1.00
##000000	8.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A9E1

Deuteranopia (green-blind)

#7E9BDE

Tritanopia (blue-blind)

#00B8BC

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #51aadf;
/* rgb */ color: rgb(81, 170, 223);
/* oklch */ color: oklch(70.5% 0.115 237.7);

Tailwind

colors: {
  custom: {
    50: '#8fc3e9',
    500: '#51aadf',
    950: '#000000',
  },
}

SCSS

$custom: #51aadf;
$custom-light: #8fc3e9;
$custom-dark: #000000;

JSON

{
  "hex": "#51aadf",
  "rgb": {
    "r": 81,
    "g": 170,
    "b": 223
  },
  "hsl": {
    "h": 202.394,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.70539,
    "c": 0.11514,
    "h": 237.7
  },
  "luminance": 0.35826
}

Semantic roles & 50–950 ramp

primary

#51AADF

secondary

#E1BFAA

accent

#7E3CEC

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51AADF

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

Preview Lab → · Contrast checker → · Palette generator →