#51AEC9#51AEC9

#51AEC9 is a light, moderate cyan. Relative luminance 0.362; OKLCH L 70.5% C 0.096 H 219.7°. Best body text is #000000 at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#51AEC9
RGB	rgb(81, 174, 201)
HSL	hsl(194, 53%, 55%)
HSV	hsv(194, 60%, 79%)
CMYK	cmyk(59.7%, 13.4%, 0%, 21.2%)
CIE-LAB	lab(66.70, -19.59, -22.03)
CIE-LCH	lch(66.70, 29.48, 228.34°)
OKLab	oklab(70.51% -0.0738 -0.0612)
OKLCH	oklch(70.51% 0.096 219.7)
XYZ	xyz(29.0678, 36.2356, 60.7093)
Luminance	0.3624 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AEC9 #C96C51

analogous

#51C9A8 #51AEC9 #5172C9

triadic

#51AEC9 #C951AE #AEC951

tetradic

#51AEC9 #A851C9 #C96C51 #72C951

square

#51AEC9 #A851C9 #C96C51 #72C951

split-complementary

#51AEC9 #C95172 #C9A851

monochromatic

#26677A #348EA9 #51AEC9 #80C4D7 #AED9E6

Accessibility & contrast

On white

2.55

#51AEC9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.25

#51AEC9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AEC9

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AEC9	#FFFFFF	#000000	##000000
##51AEC9	1.00	2.55	8.25	8.25
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.25	21.00	1.00	1.00
##000000	8.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DAACA

Deuteranopia (green-blind)

#8C9DC9

Tritanopia (blue-blind)

#00B7B6

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51aec9;
/* rgb */ color: rgb(81, 174, 201);
/* oklch */ color: oklch(70.5% 0.096 219.7);

Tailwind

colors: {
  custom: {
    50: '#8dc6d9',
    500: '#51aec9',
    950: '#000000',
  },
}

SCSS

$custom: #51aec9;
$custom-light: #8dc6d9;
$custom-dark: #000000;

JSON

{
  "hex": "#51aec9",
  "rgb": {
    "r": 81,
    "g": 174,
    "b": 201
  },
  "hsl": {
    "h": 193.5,
    "s": 52.632,
    "l": 55.294
  },
  "oklch": {
    "l": 0.7051,
    "c": 0.09586,
    "h": 219.7
  },
  "luminance": 0.36238
}

Semantic roles & 50–950 ramp

primary

#51AEC9

secondary

#D4ADA2

accent

#6C4CDC

background

#F9FCFD

surface

#F1F8FA

border

#CBD1D3

text

#0D1314

muted

#7E8283

Preview Lab

Preview with #51AEC9

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

Preview Lab → · Contrast checker → · Palette generator →