#51BFCC#51BFCC

#51BFCC is a light, moderate teal. Relative luminance 0.434; OKLCH L 74.6% C 0.101 H 205.9°. Best body text is #000000 at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#51BFCC
RGB	rgb(81, 191, 204)
HSL	hsl(186, 55%, 56%)
HSV	hsv(186, 60%, 80%)
CMYK	cmyk(60.3%, 6.4%, 0%, 20%)
CIE-LAB	lab(71.80, -27.33, -15.93)
CIE-LCH	lch(71.80, 31.63, 210.24°)
OKLab	oklab(74.64% -0.0907 -0.0441)
OKLCH	oklch(74.64% 0.101 205.9)
XYZ	xyz(32.9187, 43.3672, 63.7509)
Luminance	0.4337 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BFCC #CC5E51

analogous

#51CC9B #51BFCC #5181CC

triadic

#51BFCC #CC51BF #BFCC51

tetradic

#51BFCC #9B51CC #CC5E51 #81CC51

square

#51BFCC #9B51CC #CC5E51 #81CC51

split-complementary

#51BFCC #CC5181 #CC9B51

monochromatic

#25747E #33A0AD #51BFCC #80D0DA #B0E2E8

Accessibility & contrast

On white

2.17

#51BFCC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.67

#51BFCC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BFCC

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BFCC	#FFFFFF	#000000	##000000
##51BFCC	1.00	2.17	9.67	9.67
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.67	21.00	1.00	1.00
##000000	9.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1B8CD

Deuteranopia (green-blind)

#9EAACC

Tritanopia (blue-blind)

#00C6C3

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #51bfcc;
/* rgb */ color: rgb(81, 191, 204);
/* oklch */ color: oklch(74.6% 0.101 205.9);

Tailwind

colors: {
  custom: {
    50: '#8ed2db',
    500: '#51bfcc',
    950: '#000000',
  },
}

SCSS

$custom: #51bfcc;
$custom-light: #8ed2db;
$custom-dark: #000000;

JSON

{
  "hex": "#51bfcc",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 204
  },
  "hsl": {
    "h": 186.341,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.74642,
    "c": 0.10085,
    "h": 205.9
  },
  "luminance": 0.43371
}

Semantic roles & 50–950 ramp

primary

#51BFCC

secondary

#D6A8A3

accent

#594ADE

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #51BFCC

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

Preview Lab → · Contrast checker → · Palette generator →