#51D9F2#51D9F2

#51D9F2 is a very light, vivid teal. Relative luminance 0.578; OKLCH L 82.2% C 0.120 H 212.1°. Best body text is #000000 at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#51D9F2
RGB	rgb(81, 217, 242)
HSL	hsl(189, 86%, 63%)
HSV	hsv(189, 67%, 95%)
CMYK	cmyk(66.5%, 10.3%, 0%, 5.1%)
CIE-LAB	lab(80.62, -29.00, -23.05)
CIE-LCH	lch(80.62, 37.04, 218.48°)
OKLab	oklab(82.15% -0.102 -0.0641)
OKLCH	oklch(82.15% 0.12 212.1)
XYZ	xyz(44.2265, 57.7809, 92.8092)
Luminance	0.5779 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D9F2 #F26A51

analogous

#51F2BA #51D9F2 #5188F2

triadic

#51D9F2 #F251D9 #D9F251

tetradic

#51D9F2 #BA51F2 #F26A51 #88F251

square

#51D9F2 #BA51F2 #F26A51 #88F251

split-complementary

#51D9F2 #F25188 #F2BA51

monochromatic

#0EA0BB #18CDEE #51D9F2 #8AE5F6 #C3F2FB

Accessibility & contrast

On white

1.67

#51D9F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.56

#51D9F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D9F2

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D9F2	#FFFFFF	#000000	##000000
##51D9F2	1.00	1.67	12.56	12.56
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.56	21.00	1.00	1.00
##000000	12.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5D2F3

Deuteranopia (green-blind)

#AEC1F2

Tritanopia (blue-blind)

#00E3E1

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51d9f2;
/* rgb */ color: rgb(81, 217, 242);
/* oklch */ color: oklch(82.2% 0.120 212.1);

Tailwind

colors: {
  custom: {
    50: '#94e5f6',
    500: '#51d9f2',
    950: '#000000',
  },
}

SCSS

$custom: #51d9f2;
$custom-light: #94e5f6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d9f2",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 242
  },
  "hsl": {
    "h": 189.317,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.82154,
    "c": 0.12043,
    "h": 212.1
  },
  "luminance": 0.57786
}

Semantic roles & 50–950 ramp

primary

#51D9F2

secondary

#B9442E

accent

#2603E3

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #51D9F2

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

Preview Lab → · Contrast checker → · Palette generator →