#51ABD2#51ABD2

#51ABD2 is a light, moderate cyan. Relative luminance 0.355; OKLCH L 70.2% C 0.103 H 229.2°. Best body text is #000000 at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#51ABD2
RGB	rgb(81, 171, 210)
HSL	hsl(198, 59%, 57%)
HSV	hsv(198, 61%, 82%)
CMYK	cmyk(61.4%, 18.6%, 0%, 17.6%)
CIE-LAB	lab(66.16, -15.27, -27.83)
CIE-LCH	lch(66.16, 31.75, 241.26°)
OKLab	oklab(70.19% -0.0672 -0.0777)
OKLCH	oklch(70.19% 0.103 229.2)
XYZ	xyz(29.5846, 35.5253, 66.2582)
Luminance	0.3553 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ABD2 #D27851

analogous

#51D2B9 #51ABD2 #516AD2

triadic

#51ABD2 #D251AB #ABD251

tetradic

#51ABD2 #B951D2 #D27851 #6AD251

square

#51ABD2 #B951D2 #D27851 #6AD251

split-complementary

#51ABD2 #D2516A #D2B951

monochromatic

#236886 #2F8EB7 #51ABD2 #82C2DF #B2DAEB

Accessibility & contrast

On white

2.59

#51ABD2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.11

#51ABD2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABD2

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ABD2	#FFFFFF	#000000	##000000
##51ABD2	1.00	2.59	8.11	8.11
#FFFFFF	2.59	1.00	21.00	21.00
#000000	8.11	21.00	1.00	1.00
##000000	8.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A8D4

Deuteranopia (green-blind)

#859BD1

Tritanopia (blue-blind)

#00B6B8

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #51abd2;
/* rgb */ color: rgb(81, 171, 210);
/* oklch */ color: oklch(70.2% 0.103 229.2);

Tailwind

colors: {
  custom: {
    50: '#8ec4e0',
    500: '#51abd2',
    950: '#000000',
  },
}

SCSS

$custom: #51abd2;
$custom-light: #8ec4e0;
$custom-dark: #000000;

JSON

{
  "hex": "#51abd2",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 210
  },
  "hsl": {
    "h": 198.14,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.70186,
    "c": 0.10272,
    "h": 229.2
  },
  "luminance": 0.35528
}

Semantic roles & 50–950 ramp

primary

#51ABD2

secondary

#DAB5A5

accent

#7546E2

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51ABD2

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

Preview Lab → · Contrast checker → · Palette generator →