#51AEC2#51AEC2

#51AEC2 is a light, moderate cyan. Relative luminance 0.359; OKLCH L 70.2% C 0.092 H 213.9°. Best body text is #000000 at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#51AEC2
RGB	rgb(81, 174, 194)
HSL	hsl(191, 48%, 54%)
HSV	hsv(191, 58%, 76%)
CMYK	cmyk(58.2%, 10.3%, 0%, 23.9%)
CIE-LAB	lab(66.45, -21.67, -18.53)
CIE-LCH	lch(66.45, 28.51, 220.52°)
OKLab	oklab(70.23% -0.0765 -0.0514)
OKLCH	oklch(70.23% 0.092 213.9)
XYZ	xyz(28.2631, 35.9137, 56.4711)
Luminance	0.3592 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AEC2 #C26551

analogous

#51C29D #51AEC2 #5176C2

triadic

#51AEC2 #C251AE #AEC251

tetradic

#51AEC2 #9D51C2 #C26551 #76C251

square

#51AEC2 #9D51C2 #C26551 #76C251

split-complementary

#51AEC2 #C25176 #C29D51

monochromatic

#286471 #378C9E #51AEC2 #7EC3D2 #ACD8E2

Accessibility & contrast

On white

2.57

#51AEC2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.18

#51AEC2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AEC2

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AEC2	#FFFFFF	#000000	##000000
##51AEC2	1.00	2.57	8.18	8.18
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.18	21.00	1.00	1.00
##000000	8.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FA9C3

Deuteranopia (green-blind)

#8E9CC2

Tritanopia (blue-blind)

#00B6B4

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51aec2;
/* rgb */ color: rgb(81, 174, 194);
/* oklch */ color: oklch(70.2% 0.092 213.9);

Tailwind

colors: {
  custom: {
    50: '#8cc6d4',
    500: '#51aec2',
    950: '#000000',
  },
}

SCSS

$custom: #51aec2;
$custom-light: #8cc6d4;
$custom-dark: #000000;

JSON

{
  "hex": "#51aec2",
  "rgb": {
    "r": 81,
    "g": 174,
    "b": 194
  },
  "hsl": {
    "h": 190.619,
    "s": 48.085,
    "l": 53.922
  },
  "oklch": {
    "l": 0.70232,
    "c": 0.09215,
    "h": 213.9
  },
  "luminance": 0.35916
}

Semantic roles & 50–950 ramp

primary

#51AEC2

secondary

#D0A89F

accent

#6850D8

background

#F9FCFD

surface

#F1F8FA

border

#CBD1D3

text

#0D1314

muted

#7E8283

Preview Lab

Preview with #51AEC2

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

Preview Lab → · Contrast checker → · Palette generator →