#51A4E6#51A4E6

#51A4E6 is a light, vivid cyan. Relative luminance 0.340; OKLCH L 69.5% C 0.127 H 245.1°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#51A4E6
RGB	rgb(81, 164, 230)
HSL	hsl(207, 75%, 61%)
HSV	hsv(207, 65%, 90%)
CMYK	cmyk(64.8%, 28.7%, 0%, 9.8%)
CIE-LAB	lab(64.97, -5.04, -40.70)
CIE-LCH	lch(64.97, 41.01, 262.95°)
OKLab	oklab(69.52% -0.0533 -0.1148)
OKLCH	oklch(69.52% 0.127 245.1)
XYZ	xyz(30.9464, 34.0103, 79.7813)
Luminance	0.3401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A4E6 #E69351

analogous

#51E6DD #51A4E6 #5159E6

triadic

#51A4E6 #E651A4 #A4E651

tetradic

#51A4E6 #DD51E6 #E69351 #59E651

square

#51A4E6 #DD51E6 #E69351 #59E651

split-complementary

#51A4E6 #E65159 #E6DD51

monochromatic

#1866A5 #1F88DA #51A4E6 #87C0EE #BCDCF5

Accessibility & contrast

On white

2.69

#51A4E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#51A4E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A4E6

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A4E6	#FFFFFF	#000000	##000000
##51A4E6	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#87A6E9

Deuteranopia (green-blind)

#7297E5

Tritanopia (blue-blind)

#00B4BB

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #51a4e6;
/* rgb */ color: rgb(81, 164, 230);
/* oklch */ color: oklch(69.5% 0.127 245.1);

Tailwind

colors: {
  custom: {
    50: '#90beee',
    500: '#51a4e6',
    950: '#000000',
  },
}

SCSS

$custom: #51a4e6;
$custom-light: #90beee;
$custom-dark: #000000;

JSON

{
  "hex": "#51a4e6",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 230
  },
  "hsl": {
    "h": 206.577,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.69519,
    "c": 0.12658,
    "h": 245.1
  },
  "luminance": 0.34013
}

Semantic roles & 50–950 ramp

primary

#51A4E6

secondary

#E5C6AD

accent

#670ED7

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51A4E6

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

Preview Lab → · Contrast checker → · Palette generator →