#51ACE1#51ACE1

#51ACE1 is a light, moderate cyan. Relative luminance 0.367; OKLCH L 71.1% C 0.116 H 237.1°. Best body text is #000000 at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#51ACE1
RGB	rgb(81, 172, 225)
HSL	hsl(202, 71%, 60%)
HSV	hsv(202, 64%, 88%)
CMYK	cmyk(64%, 23.6%, 0%, 11.8%)
CIE-LAB	lab(67.04, -11.08, -34.72)
CIE-LCH	lch(67.04, 36.45, 252.30°)
OKLab	oklab(71.09% -0.063 -0.0975)
OKLCH	oklch(71.09% 0.116 237.1)
XYZ	xyz(31.7312, 36.6874, 76.6287)
Luminance	0.3669 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ACE1 #E18651

analogous

#51E1CE #51ACE1 #5164E1

triadic

#51ACE1 #E151AC #ACE151

tetradic

#51ACE1 #CE51E1 #E18651 #64E151

square

#51ACE1 #CE51E1 #E18651 #64E151

split-complementary

#51ACE1 #E15164 #E1CE51

monochromatic

#1B6D9D #2491D1 #51ACE1 #85C5EA #B9DEF3

Accessibility & contrast

On white

2.52

#51ACE1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.34

#51ACE1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ACE1

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ACE1	#FFFFFF	#000000	##000000
##51ACE1	1.00	2.52	8.34	8.34
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.34	21.00	1.00	1.00
##000000	8.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93ABE3

Deuteranopia (green-blind)

#7F9DE0

Tritanopia (blue-blind)

#00BABE

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51ace1;
/* rgb */ color: rgb(81, 172, 225);
/* oklch */ color: oklch(71.1% 0.116 237.1);

Tailwind

colors: {
  custom: {
    50: '#8fc4ea',
    500: '#51ace1',
    950: '#000000',
  },
}

SCSS

$custom: #51ace1;
$custom-light: #8fc4ea;
$custom-dark: #000000;

JSON

{
  "hex": "#51ace1",
  "rgb": {
    "r": 81,
    "g": 172,
    "b": 225
  },
  "hsl": {
    "h": 202.083,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.71088,
    "c": 0.11607,
    "h": 237.1
  },
  "luminance": 0.36691
}

Semantic roles & 50–950 ramp

primary

#51ACE1

secondary

#E3C0AB

accent

#7C3AED

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51ACE1

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

Preview Lab → · Contrast checker → · Palette generator →