#51A1CD#51A1CD

#51A1CD is a light, moderate cyan. Relative luminance 0.316; OKLCH L 67.6% C 0.102 H 235.1°. Best body text is #000000 at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#51A1CD
RGB	rgb(81, 161, 205)
HSL	hsl(201, 55%, 56%)
HSV	hsv(201, 60%, 80%)
CMYK	cmyk(60.5%, 21.5%, 0%, 19.6%)
CIE-LAB	lab(63.05, -11.42, -29.86)
CIE-LCH	lch(63.05, 31.97, 249.07°)
OKLab	oklab(67.65% -0.0583 -0.0835)
OKLCH	oklch(67.65% 0.102 235.1)
XYZ	xyz(27.1534, 31.6442, 62.4227)
Luminance	0.3165 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A1CD #CD7D51

analogous

#51CDBB #51A1CD #5163CD

triadic

#51A1CD #CD51A1 #A1CD51

tetradic

#51A1CD #BB51CD #CD7D51 #63CD51

square

#51A1CD #BB51CD #CD7D51 #63CD51

split-complementary

#51A1CD #CD5163 #CDBB51

monochromatic

#255F7F #3282AF #51A1CD #81BBDB #B0D4E8

Accessibility & contrast

On white

2.87

#51A1CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.33

#51A1CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A1CD

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A1CD	#FFFFFF	#000000	##000000
##51A1CD	1.00	2.87	7.33	7.33
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.33	21.00	1.00	1.00
##000000	7.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CA0CF

Deuteranopia (green-blind)

#7B93CC

Tritanopia (blue-blind)

#00ADB0

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #51a1cd;
/* rgb */ color: rgb(81, 161, 205);
/* oklch */ color: oklch(67.6% 0.102 235.1);

Tailwind

colors: {
  custom: {
    50: '#8dbcdc',
    500: '#51a1cd',
    950: '#000000',
  },
}

SCSS

$custom: #51a1cd;
$custom-light: #8dbcdc;
$custom-dark: #000000;

JSON

{
  "hex": "#51a1cd",
  "rgb": {
    "r": 81,
    "g": 161,
    "b": 205
  },
  "hsl": {
    "h": 201.29,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.67647,
    "c": 0.10186,
    "h": 235.1
  },
  "luminance": 0.31647
}

Semantic roles & 50–950 ramp

primary

#51A1CD

secondary

#D7B5A3

accent

#7E49DF

background

#F9FBFD

surface

#F1F6FB

border

#CBD0D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51A1CD

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

Preview Lab → · Contrast checker → · Palette generator →