#51ABE2#51ABE2

#51ABE2 is a light, moderate cyan. Relative luminance 0.364; OKLCH L 70.9% C 0.118 H 238.4°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#51ABE2
RGB	rgb(81, 171, 226)
HSL	hsl(203, 71%, 60%)
HSV	hsv(203, 64%, 89%)
CMYK	cmyk(64.2%, 24.3%, 0%, 11.4%)
CIE-LAB	lab(66.80, -10.21, -35.65)
CIE-LCH	lch(66.80, 37.09, 254.01°)
OKLab	oklab(70.91% -0.0616 -0.1002)
OKLCH	oklch(70.91% 0.118 238.4)
XYZ	xyz(31.6785, 36.3629, 77.2860)
Luminance	0.3637 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ABE2 #E28851

analogous

#51E2D1 #51ABE2 #5162E2

triadic

#51ABE2 #E251AB #ABE251

tetradic

#51ABE2 #D151E2 #E28851 #62E251

square

#51ABE2 #D151E2 #E28851 #62E251

split-complementary

#51ABE2 #E25162 #E2D151

monochromatic

#1A6C9E #2390D3 #51ABE2 #85C4EB #BADEF3

Accessibility & contrast

On white

2.54

#51ABE2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.27

#51ABE2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABE2

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ABE2	#FFFFFF	#000000	##000000
##51ABE2	1.00	2.54	8.27	8.27
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.27	21.00	1.00	1.00
##000000	8.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92ABE5

Deuteranopia (green-blind)

#7E9CE1

Tritanopia (blue-blind)

#00B9BE

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51abe2;
/* rgb */ color: rgb(81, 171, 226);
/* oklch */ color: oklch(70.9% 0.118 238.4);

Tailwind

colors: {
  custom: {
    50: '#90c3eb',
    500: '#51abe2',
    950: '#000000',
  },
}

SCSS

$custom: #51abe2;
$custom-light: #90c3eb;
$custom-dark: #000000;

JSON

{
  "hex": "#51abe2",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 226
  },
  "hsl": {
    "h": 202.759,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.70907,
    "c": 0.11762,
    "h": 238.4
  },
  "luminance": 0.36366
}

Semantic roles & 50–950 ramp

primary

#51ABE2

secondary

#E3C1AC

accent

#5B12D3

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51ABE2

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

Preview Lab → · Contrast checker → · Palette generator →