#51AFF2#51AFF2

#51AFF2 is a light, vivid cyan. Relative luminance 0.388; OKLCH L 72.6% C 0.132 H 242.7°. Best body text is #000000 at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#51AFF2
RGB	rgb(81, 175, 242)
HSL	hsl(205, 86%, 63%)
HSV	hsv(205, 67%, 95%)
CMYK	cmyk(66.5%, 27.7%, 0%, 5.1%)
CIE-LAB	lab(68.62, -7.23, -41.56)
CIE-LCH	lch(68.62, 42.18, 260.14°)
OKLab	oklab(72.57% -0.0606 -0.1172)
OKLCH	oklch(72.57% 0.132 242.7)
XYZ	xyz(34.7442, 38.8164, 89.6484)
Luminance	0.3882 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AFF2 #F29451

analogous

#51F2E4 #51AFF2 #515EF2

triadic

#51AFF2 #F251AF #AFF251

tetradic

#51AFF2 #E451F2 #F29451 #5EF251

square

#51AFF2 #E451F2 #F29451 #5EF251

split-complementary

#51AFF2 #F2515E #F2E451

monochromatic

#0E73BB #1895EE #51AFF2 #8AC9F6 #C3E3FB

Accessibility & contrast

On white

2.40

#51AFF2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.76

#51AFF2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AFF2

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AFF2	#FFFFFF	#000000	##000000
##51AFF2	1.00	2.40	8.76	8.76
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.76	21.00	1.00	1.00
##000000	8.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91B0F5

Deuteranopia (green-blind)

#7BA0F1

Tritanopia (blue-blind)

#00BFC6

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #51aff2;
/* rgb */ color: rgb(81, 175, 242);
/* oklch */ color: oklch(72.6% 0.132 242.7);

Tailwind

colors: {
  custom: {
    50: '#92c6f6',
    500: '#51aff2',
    950: '#000000',
  },
}

SCSS

$custom: #51aff2;
$custom-light: #92c6f6;
$custom-dark: #000000;

JSON

{
  "hex": "#51aff2",
  "rgb": {
    "r": 81,
    "g": 175,
    "b": 242
  },
  "hsl": {
    "h": 204.969,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.72574,
    "c": 0.13195,
    "h": 242.7
  },
  "luminance": 0.3882
}

Semantic roles & 50–950 ramp

primary

#51AFF2

secondary

#ECCBB3

accent

#6003E3

background

#F9FCFF

surface

#F2F8FE

border

#CCD1D6

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #51AFF2

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

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