#51D2F6#51D2F6

#51D2F6 is a light, vivid cyan. Relative luminance 0.545; OKLCH L 80.7% C 0.122 H 219.9°. Best body text is #000000 at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#51D2F6
RGB	rgb(81, 210, 246)
HSL	hsl(193, 90%, 64%)
HSV	hsv(193, 67%, 96%)
CMYK	cmyk(67.1%, 14.6%, 0%, 3.5%)
CIE-LAB	lab(78.75, -24.36, -28.03)
CIE-LCH	lch(78.75, 37.14, 229.01°)
OKLab	oklab(80.7% -0.0936 -0.0782)
OKLCH	oklch(80.7% 0.122 219.9)
XYZ	xyz(43.0676, 54.4916, 95.4191)
Luminance	0.5450 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D2F6 #F67551

analogous

#51F6C8 #51D2F6 #5180F6

triadic

#51D2F6 #F651D2 #D2F651

tetradic

#51D2F6 #C851F6 #F67551 #80F651

square

#51D2F6 #C851F6 #F67551 #80F651

split-complementary

#51D2F6 #F65180 #F6C851

monochromatic

#0A9AC3 #17C3F3 #51D2F6 #8BE1F9 #C5F0FC

Accessibility & contrast

On white

1.76

#51D2F6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.90

#51D2F6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D2F6

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D2F6	#FFFFFF	#000000	##000000
##51D2F6	1.00	1.76	11.90	11.90
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.90	21.00	1.00	1.00
##000000	11.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCCDF8

Deuteranopia (green-blind)

#A5BCF6

Tritanopia (blue-blind)

#00DEDD

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #51d2f6;
/* rgb */ color: rgb(81, 210, 246);
/* oklch */ color: oklch(80.7% 0.122 219.9);

Tailwind

colors: {
  custom: {
    50: '#94e0f9',
    500: '#51d2f6',
    950: '#000000',
  },
}

SCSS

$custom: #51d2f6;
$custom-light: #94e0f9;
$custom-dark: #000000;

JSON

{
  "hex": "#51d2f6",
  "rgb": {
    "r": 81,
    "g": 210,
    "b": 246
  },
  "hsl": {
    "h": 193.091,
    "s": 90.164,
    "l": 64.118
  },
  "oklch": {
    "l": 0.80698,
    "c": 0.12195,
    "h": 219.9
  },
  "luminance": 0.54496
}

Semantic roles & 50–950 ramp

primary

#51D2F6

secondary

#C04C2B

accent

#3200E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #51D2F6

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

Preview Lab → · Contrast checker → · Palette generator →