#51BEC9#51BEC9

#51BEC9 is a light, moderate teal. Relative luminance 0.428; OKLCH L 74.3% C 0.100 H 204.4°. Best body text is #000000 at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#51BEC9
RGB	rgb(81, 190, 201)
HSL	hsl(186, 53%, 55%)
HSV	hsv(186, 60%, 79%)
CMYK	cmyk(59.7%, 5.5%, 0%, 21.2%)
CIE-LAB	lab(71.41, -27.70, -14.88)
CIE-LCH	lch(71.41, 31.44, 208.25°)
OKLab	oklab(74.3% -0.0909 -0.0412)
OKLCH	oklch(74.3% 0.1 204.4)
XYZ	xyz(32.3450, 42.7900, 61.8017)
Luminance	0.4279 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BEC9 #C95C51

analogous

#51C998 #51BEC9 #5182C9

triadic

#51BEC9 #C951BE #BEC951

tetradic

#51BEC9 #9851C9 #C95C51 #82C951

square

#51BEC9 #9851C9 #C95C51 #82C951

split-complementary

#51BEC9 #C95182 #C99851

monochromatic

#26727A #349EA9 #51BEC9 #80CFD7 #AEE1E6

Accessibility & contrast

On white

2.20

#51BEC9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.56

#51BEC9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BEC9

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BEC9	#FFFFFF	#000000	##000000
##51BEC9	1.00	2.20	9.56	9.56
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.56	21.00	1.00	1.00
##000000	9.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0B7CA

Deuteranopia (green-blind)

#9EA9C9

Tritanopia (blue-blind)

#00C5C1

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #51bec9;
/* rgb */ color: rgb(81, 190, 201);
/* oklch */ color: oklch(74.3% 0.100 204.4);

Tailwind

colors: {
  custom: {
    50: '#8ed2d9',
    500: '#51bec9',
    950: '#000000',
  },
}

SCSS

$custom: #51bec9;
$custom-light: #8ed2d9;
$custom-dark: #000000;

JSON

{
  "hex": "#51bec9",
  "rgb": {
    "r": 81,
    "g": 190,
    "b": 201
  },
  "hsl": {
    "h": 185.5,
    "s": 52.632,
    "l": 55.294
  },
  "oklch": {
    "l": 0.74295,
    "c": 0.09977,
    "h": 204.4
  },
  "luminance": 0.42793
}

Semantic roles & 50–950 ramp

primary

#51BEC9

secondary

#D4A6A2

accent

#594CDC

background

#F9FCFD

surface

#F2F9FA

border

#CCD2D3

text

#0D1414

muted

#7E8283

Preview Lab

Preview with #51BEC9

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

Preview Lab → · Contrast checker → · Palette generator →