#51ACDC#51ACDC

#51ACDC is a light, moderate cyan. Relative luminance 0.364; OKLCH L 70.9% C 0.111 H 234.4°. Best body text is #000000 at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#51ACDC
RGB	rgb(81, 172, 220)
HSL	hsl(201, 67%, 59%)
HSV	hsv(201, 63%, 86%)
CMYK	cmyk(63.2%, 21.8%, 0%, 13.7%)
CIE-LAB	lab(66.84, -12.67, -32.29)
CIE-LCH	lch(66.84, 34.69, 248.58°)
OKLab	oklab(70.86% -0.0647 -0.0905)
OKLCH	oklch(70.86% 0.111 234.4)
XYZ	xyz(31.0591, 36.4185, 73.0889)
Luminance	0.3642 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ACDC #DC8151

analogous

#51DCC6 #51ACDC #5167DC

triadic

#51ACDC #DC51AC #ACDC51

tetradic

#51ACDC #C651DC #DC8151 #67DC51

square

#51ACDC #C651DC #DC8151 #67DC51

split-complementary

#51ACDC #DC5167 #DCC651

monochromatic

#1E6C95 #2891C8 #51ACDC #84C4E6 #B7DDF0

Accessibility & contrast

On white

2.53

#51ACDC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.28

#51ACDC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ACDC

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ACDC	#FFFFFF	#000000	##000000
##51ACDC	1.00	2.53	8.28	8.28
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.28	21.00	1.00	1.00
##000000	8.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95ABDE

Deuteranopia (green-blind)

#829CDB

Tritanopia (blue-blind)

#00B9BC

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51acdc;
/* rgb */ color: rgb(81, 172, 220);
/* oklch */ color: oklch(70.9% 0.111 234.4);

Tailwind

colors: {
  custom: {
    50: '#8fc4e7',
    500: '#51acdc',
    950: '#000000',
  },
}

SCSS

$custom: #51acdc;
$custom-light: #8fc4e7;
$custom-dark: #000000;

JSON

{
  "hex": "#51acdc",
  "rgb": {
    "r": 81,
    "g": 172,
    "b": 220
  },
  "hsl": {
    "h": 200.719,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.70859,
    "c": 0.11124,
    "h": 234.4
  },
  "luminance": 0.36422
}

Semantic roles & 50–950 ramp

primary

#51ACDC

secondary

#E0BCA9

accent

#793EE9

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51ACDC

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

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