#51A6DE#51A6DE

#51A6DE is a light, moderate cyan. Relative luminance 0.343; OKLCH L 69.6% C 0.116 H 240.2°. Best body text is #000000 at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#51A6DE
RGB	rgb(81, 166, 222)
HSL	hsl(204, 68%, 59%)
HSV	hsv(204, 64%, 87%)
CMYK	cmyk(63.5%, 25.2%, 0%, 12.9%)
CIE-LAB	lab(65.19, -8.75, -35.95)
CIE-LCH	lch(65.19, 37.00, 256.32°)
OKLab	oklab(69.58% -0.0578 -0.101)
OKLCH	oklch(69.58% 0.116 240.2)
XYZ	xyz(30.2094, 34.2926, 74.1202)
Luminance	0.3430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A6DE #DE8951

analogous

#51DED0 #51A6DE #5160DE

triadic

#51A6DE #DE51A6 #A6DE51

tetradic

#51A6DE #D051DE #DE8951 #60DE51

square

#51A6DE #D051DE #DE8951 #60DE51

split-complementary

#51A6DE #DE5160 #DED051

monochromatic

#1D6798 #278ACB #51A6DE #84C0E8 #B8DBF2

Accessibility & contrast

On white

2.67

#51A6DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.86

#51A6DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A6DE

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A6DE	#FFFFFF	#000000	##000000
##51A6DE	1.00	2.67	7.86	7.86
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.86	21.00	1.00	1.00
##000000	7.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CA6E1

Deuteranopia (green-blind)

#7998DD

Tritanopia (blue-blind)

#00B4B9

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #51a6de;
/* rgb */ color: rgb(81, 166, 222);
/* oklch */ color: oklch(69.6% 0.116 240.2);

Tailwind

colors: {
  custom: {
    50: '#8fc0e8',
    500: '#51a6de',
    950: '#000000',
  },
}

SCSS

$custom: #51a6de;
$custom-light: #8fc0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#51a6de",
  "rgb": {
    "r": 81,
    "g": 166,
    "b": 222
  },
  "hsl": {
    "h": 203.83,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.69582,
    "c": 0.11641,
    "h": 240.2
  },
  "luminance": 0.34296
}

Semantic roles & 50–950 ramp

primary

#51A6DE

secondary

#E1C0AA

accent

#823DEB

background

#F9FBFE

surface

#F2F7FC

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51A6DE

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

Preview Lab → · Contrast checker → · Palette generator →