#51ABD5#51ABD5

#51ABD5 is a light, moderate cyan. Relative luminance 0.357; OKLCH L 70.3% C 0.105 H 231.1°. Best body text is #000000 at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#51ABD5
RGB	rgb(81, 171, 213)
HSL	hsl(199, 61%, 58%)
HSV	hsv(199, 62%, 84%)
CMYK	cmyk(62%, 19.7%, 0%, 16.5%)
CIE-LAB	lab(66.27, -14.33, -29.31)
CIE-LCH	lch(66.27, 32.63, 243.94°)
OKLab	oklab(70.32% -0.0661 -0.0819)
OKLCH	oklch(70.32% 0.105 231.1)
XYZ	xyz(29.9618, 35.6762, 68.2451)
Luminance	0.3568 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ABD5 #D57B51

analogous

#51D5BD #51ABD5 #5169D5

triadic

#51ABD5 #D551AB #ABD551

tetradic

#51ABD5 #BD51D5 #D57B51 #69D551

square

#51ABD5 #BD51D5 #D57B51 #69D551

split-complementary

#51ABD5 #D55169 #D5BD51

monochromatic

#21698A #2D8EBC #51ABD5 #82C3E1 #B4DBED

Accessibility & contrast

On white

2.58

#51ABD5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.14

#51ABD5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABD5

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ABD5	#FFFFFF	#000000	##000000
##51ABD5	1.00	2.58	8.14	8.14
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.14	21.00	1.00	1.00
##000000	8.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96A9D7

Deuteranopia (green-blind)

#849BD4

Tritanopia (blue-blind)

#00B7B9

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #51abd5;
/* rgb */ color: rgb(81, 171, 213);
/* oklch */ color: oklch(70.3% 0.105 231.1);

Tailwind

colors: {
  custom: {
    50: '#8ec4e2',
    500: '#51abd5',
    950: '#000000',
  },
}

SCSS

$custom: #51abd5;
$custom-light: #8ec4e2;
$custom-dark: #000000;

JSON

{
  "hex": "#51abd5",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 213
  },
  "hsl": {
    "h": 199.091,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.70317,
    "c": 0.10528,
    "h": 231.1
  },
  "luminance": 0.35679
}

Semantic roles & 50–950 ramp

primary

#51ABD5

secondary

#DBB7A6

accent

#7744E4

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51ABD5

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

Preview Lab → · Contrast checker → · Palette generator →