#51ADC8#51ADC8

#51ADC8 is a light, moderate cyan. Relative luminance 0.358; OKLCH L 70.2% C 0.095 H 219.9°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#51ADC8
RGB	rgb(81, 173, 200)
HSL	hsl(194, 52%, 55%)
HSV	hsv(194, 60%, 78%)
CMYK	cmyk(59.5%, 13.5%, 0%, 21.6%)
CIE-LAB	lab(66.37, -19.37, -21.98)
CIE-LCH	lch(66.37, 29.30, 228.60°)
OKLab	oklab(70.23% -0.0731 -0.0611)
OKLCH	oklch(70.23% 0.095 219.9)
XYZ	xyz(28.7581, 35.8038, 60.0276)
Luminance	0.3581 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ADC8 #C86C51

analogous

#51C8A7 #51ADC8 #5172C8

triadic

#51ADC8 #C851AD #ADC851

tetradic

#51ADC8 #A751C8 #C86C51 #72C851

square

#51ADC8 #A751C8 #C86C51 #72C851

split-complementary

#51ADC8 #C85172 #C8A751

monochromatic

#266679 #358DA7 #51ADC8 #80C3D7 #AED9E5

Accessibility & contrast

On white

2.57

#51ADC8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.16

#51ADC8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ADC8

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ADC8	#FFFFFF	#000000	##000000
##51ADC8	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)

#9CA9C9

Deuteranopia (green-blind)

#8B9CC8

Tritanopia (blue-blind)

#00B6B5

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #51adc8;
/* rgb */ color: rgb(81, 173, 200);
/* oklch */ color: oklch(70.2% 0.095 219.9);

Tailwind

colors: {
  custom: {
    50: '#8dc5d8',
    500: '#51adc8',
    950: '#000000',
  },
}

SCSS

$custom: #51adc8;
$custom-light: #8dc5d8;
$custom-dark: #000000;

JSON

{
  "hex": "#51adc8",
  "rgb": {
    "r": 81,
    "g": 173,
    "b": 200
  },
  "hsl": {
    "h": 193.613,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.70234,
    "c": 0.09523,
    "h": 219.9
  },
  "luminance": 0.35807
}

Semantic roles & 50–950 ramp

primary

#51ADC8

secondary

#D3ADA1

accent

#6D4CDB

background

#F9FCFD

surface

#F1F8FA

border

#CBD1D3

text

#0D1314

muted

#7E8283

Preview Lab

Preview with #51ADC8

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

Preview Lab → · Contrast checker → · Palette generator →