#51BFD3#51BFD3

#51BFD3 is a light, moderate teal. Relative luminance 0.437; OKLCH L 74.9% C 0.103 H 211.5°. Best body text is #000000 at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#51BFD3
RGB	rgb(81, 191, 211)
HSL	hsl(189, 60%, 57%)
HSV	hsv(189, 62%, 83%)
CMYK	cmyk(61.6%, 9.5%, 0%, 17.3%)
CIE-LAB	lab(72.03, -25.30, -19.40)
CIE-LCH	lch(72.03, 31.88, 217.48°)
OKLab	oklab(74.91% -0.0879 -0.0538)
OKLCH	oklch(74.91% 0.103 211.5)
XYZ	xyz(33.7772, 43.7106, 68.2723)
Luminance	0.4371 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BFD3 #D36551

analogous

#51D3A6 #51BFD3 #517ED3

triadic

#51BFD3 #D351BF #BFD351

tetradic

#51BFD3 #A651D3 #D36551 #7ED351

square

#51BFD3 #A651D3 #D36551 #7ED351

split-complementary

#51BFD3 #D3517E #D3A651

monochromatic

#227887 #2FA3B8 #51BFD3 #82D1DF #B3E3EC

Accessibility & contrast

On white

2.16

#51BFD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.74

#51BFD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BFD3

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BFD3	#FFFFFF	#000000	##000000
##51BFD3	1.00	2.16	9.74	9.74
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.74	21.00	1.00	1.00
##000000	9.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AFB9D4

Deuteranopia (green-blind)

#9CAAD3

Tritanopia (blue-blind)

#00C8C5

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51bfd3;
/* rgb */ color: rgb(81, 191, 211);
/* oklch */ color: oklch(74.9% 0.103 211.5);

Tailwind

colors: {
  custom: {
    50: '#8fd2e0',
    500: '#51bfd3',
    950: '#000000',
  },
}

SCSS

$custom: #51bfd3;
$custom-light: #8fd2e0;
$custom-dark: #000000;

JSON

{
  "hex": "#51bfd3",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 211
  },
  "hsl": {
    "h": 189.231,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.74905,
    "c": 0.10303,
    "h": 211.5
  },
  "luminance": 0.43714
}

Semantic roles & 50–950 ramp

primary

#51BFD3

secondary

#DAAEA6

accent

#5D45E3

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1415

muted

#7E8283

Preview Lab

Preview with #51BFD3

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

Preview Lab → · Contrast checker → · Palette generator →