#51ABDD#51ABDD

#51ABDD is a light, moderate cyan. Relative luminance 0.361; OKLCH L 70.7% C 0.113 H 235.8°. Best body text is #000000 at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#51ABDD
RGB	rgb(81, 171, 221)
HSL	hsl(201, 67%, 59%)
HSV	hsv(201, 63%, 87%)
CMYK	cmyk(63.3%, 22.6%, 0%, 13.3%)
CIE-LAB	lab(66.59, -11.81, -33.23)
CIE-LCH	lch(66.59, 35.26, 250.43°)
OKLab	oklab(70.68% -0.0633 -0.0932)
OKLCH	oklch(70.68% 0.113 235.8)
XYZ	xyz(31.0024, 36.0925, 73.7253)
Luminance	0.3610 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ABDD #DD8351

analogous

#51DDC9 #51ABDD #5165DD

triadic

#51ABDD #DD51AB #ABDD51

tetradic

#51ABDD #C951DD #DD8351 #65DD51

square

#51ABDD #C951DD #DD8351 #65DD51

split-complementary

#51ABDD #DD5165 #DDC951

monochromatic

#1D6B96 #2790C9 #51ABDD #84C4E7 #B7DCF1

Accessibility & contrast

On white

2.55

#51ABDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.22

#51ABDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABDD

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ABDD	#FFFFFF	#000000	##000000
##51ABDD	1.00	2.55	8.22	8.22
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.22	21.00	1.00	1.00
##000000	8.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93AADF

Deuteranopia (green-blind)

#809CDC

Tritanopia (blue-blind)

#00B8BC

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51abdd;
/* rgb */ color: rgb(81, 171, 221);
/* oklch */ color: oklch(70.7% 0.113 235.8);

Tailwind

colors: {
  custom: {
    50: '#8fc4e7',
    500: '#51abdd',
    950: '#000000',
  },
}

SCSS

$custom: #51abdd;
$custom-light: #8fc4e7;
$custom-dark: #000000;

JSON

{
  "hex": "#51abdd",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 221
  },
  "hsl": {
    "h": 201.429,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.70676,
    "c": 0.11265,
    "h": 235.8
  },
  "luminance": 0.36096
}

Semantic roles & 50–950 ramp

primary

#51ABDD

secondary

#E0BDAA

accent

#7B3EEA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51ABDD

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

Preview Lab → · Contrast checker → · Palette generator →