#51ABD7#51ABD7

#51ABD7 is a light, moderate cyan. Relative luminance 0.358; OKLCH L 70.4% C 0.107 H 232.4°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#51ABD7
RGB	rgb(81, 171, 215)
HSL	hsl(200, 63%, 58%)
HSV	hsv(200, 62%, 84%)
CMYK	cmyk(62.3%, 20.5%, 0%, 15.7%)
CIE-LAB	lab(66.35, -13.71, -30.29)
CIE-LCH	lch(66.35, 33.25, 245.66°)
OKLab	oklab(70.41% -0.0654 -0.0848)
OKLCH	oklch(70.41% 0.107 232.4)
XYZ	xyz(30.2172, 35.7784, 69.5903)
Luminance	0.3578 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ABD7 #D77D51

analogous

#51D7C0 #51ABD7 #5168D7

triadic

#51ABD7 #D751AB #ABD751

tetradic

#51ABD7 #C051D7 #D77D51 #68D751

square

#51ABD7 #C051D7 #D77D51 #68D751

split-complementary

#51ABD7 #D75168 #D7C051

monochromatic

#20698D #2C8FBF #51ABD7 #83C3E2 #B5DBEE

Accessibility & contrast

On white

2.57

#51ABD7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.16

#51ABD7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABD7

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ABD7	#FFFFFF	#000000	##000000
##51ABD7	1.00	2.57	8.16	8.16
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.16	21.00	1.00	1.00
##000000	8.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95A9D9

Deuteranopia (green-blind)

#839BD6

Tritanopia (blue-blind)

#00B7BA

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #51abd7;
/* rgb */ color: rgb(81, 171, 215);
/* oklch */ color: oklch(70.4% 0.107 232.4);

Tailwind

colors: {
  custom: {
    50: '#8ec4e3',
    500: '#51abd7',
    950: '#000000',
  },
}

SCSS

$custom: #51abd7;
$custom-light: #8ec4e3;
$custom-dark: #000000;

JSON

{
  "hex": "#51abd7",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 215
  },
  "hsl": {
    "h": 199.701,
    "s": 62.617,
    "l": 58.039
  },
  "oklch": {
    "l": 0.70405,
    "c": 0.10705,
    "h": 232.4
  },
  "luminance": 0.35781
}

Semantic roles & 50–950 ramp

primary

#51ABD7

secondary

#DDB9A7

accent

#7842E6

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51ABD7

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

Preview Lab → · Contrast checker → · Palette generator →