#51ACDB#51ACDB

#51ACDB is a light, moderate cyan. Relative luminance 0.364; OKLCH L 70.8% C 0.110 H 233.9°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#51ACDB
RGB	rgb(81, 172, 219)
HSL	hsl(200, 66%, 59%)
HSV	hsv(200, 63%, 86%)
CMYK	cmyk(63%, 21.5%, 0%, 14.1%)
CIE-LAB	lab(66.80, -12.99, -31.80)
CIE-LCH	lch(66.80, 34.35, 247.79°)
OKLab	oklab(70.81% -0.065 -0.0891)
OKLCH	oklch(70.81% 0.11 233.9)
XYZ	xyz(30.9271, 36.3657, 72.3935)
Luminance	0.3637 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ACDB #DB8051

analogous

#51DBC5 #51ACDB #5167DB

triadic

#51ACDB #DB51AC #ACDB51

tetradic

#51ACDB #C551DB #DB8051 #67DB51

square

#51ACDB #C551DB #DB8051 #67DB51

split-complementary

#51ACDB #DB5167 #DBC551

monochromatic

#1E6B93 #2990C6 #51ACDB #84C4E5 #B6DCF0

Accessibility & contrast

On white

2.54

#51ACDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.27

#51ACDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ACDB

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ACDB	#FFFFFF	#000000	##000000
##51ACDB	1.00	2.54	8.27	8.27
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.27	21.00	1.00	1.00
##000000	8.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95AADD

Deuteranopia (green-blind)

#829CDA

Tritanopia (blue-blind)

#00B8BC

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51acdb;
/* rgb */ color: rgb(81, 172, 219);
/* oklch */ color: oklch(70.8% 0.110 233.9);

Tailwind

colors: {
  custom: {
    50: '#8fc4e6',
    500: '#51acdb',
    950: '#000000',
  },
}

SCSS

$custom: #51acdb;
$custom-light: #8fc4e6;
$custom-dark: #000000;

JSON

{
  "hex": "#51acdb",
  "rgb": {
    "r": 81,
    "g": 172,
    "b": 219
  },
  "hsl": {
    "h": 200.435,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.70814,
    "c": 0.11029,
    "h": 233.9
  },
  "luminance": 0.36369
}

Semantic roles & 50–950 ramp

primary

#51ACDB

secondary

#DFBBA9

accent

#793FE9

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51ACDB

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

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