#51D7EC#51D7EC

#51D7EC is a light, moderate teal. Relative luminance 0.564; OKLCH L 81.5% C 0.118 H 209.7°. Best body text is #000000 at 12.28:1 contrast (WCAG AA passes).

Color values

HEX	#51D7EC
RGB	rgb(81, 215, 236)
HSL	hsl(188, 80%, 62%)
HSV	hsv(188, 66%, 93%)
CMYK	cmyk(65.7%, 8.9%, 0%, 7.5%)
CIE-LAB	lab(79.84, -29.79, -21.03)
CIE-LCH	lch(79.84, 36.46, 215.22°)
OKLab	oklab(81.46% -0.1023 -0.0584)
OKLCH	oklch(81.46% 0.118 209.7)
XYZ	xyz(42.8277, 56.4016, 87.9701)
Luminance	0.5641 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D7EC #EC6651

analogous

#51ECB4 #51D7EC #518AEC

triadic

#51D7EC #EC51D7 #D7EC51

tetradic

#51D7EC #B451EC #EC6651 #8AEC51

square

#51D7EC #B451EC #EC6651 #8AEC51

split-complementary

#51D7EC #EC518A #ECB451

monochromatic

#139AAF #1ACAE6 #51D7EC #88E4F2 #BFF0F8

Accessibility & contrast

On white

1.71

#51D7EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.28

#51D7EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D7EC

12.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D7EC	#FFFFFF	#000000	##000000
##51D7EC	1.00	1.71	12.28	12.28
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.28	21.00	1.00	1.00
##000000	12.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5CFED

Deuteranopia (green-blind)

#AEBFEC

Tritanopia (blue-blind)

#00E1DD

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #51d7ec;
/* rgb */ color: rgb(81, 215, 236);
/* oklch */ color: oklch(81.5% 0.118 209.7);

Tailwind

colors: {
  custom: {
    50: '#93e3f2',
    500: '#51d7ec',
    950: '#000000',
  },
}

SCSS

$custom: #51d7ec;
$custom-light: #93e3f2;
$custom-dark: #000000;

JSON

{
  "hex": "#51d7ec",
  "rgb": {
    "r": 81,
    "g": 215,
    "b": 236
  },
  "hsl": {
    "h": 188.129,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.81464,
    "c": 0.11784,
    "h": 209.7
  },
  "luminance": 0.56406
}

Semantic roles & 50–950 ramp

primary

#51D7EC

secondary

#B04231

accent

#2609DD

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #51D7EC

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

Preview Lab → · Contrast checker → · Palette generator →