#51A3CB#51A3CB

#51A3CB is a light, moderate cyan. Relative luminance 0.323; OKLCH L 68.0% C 0.099 H 232.0°. Best body text is #000000 at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#51A3CB
RGB	rgb(81, 163, 203)
HSL	hsl(200, 54%, 56%)
HSV	hsv(200, 60%, 80%)
CMYK	cmyk(60.1%, 19.7%, 0%, 20.4%)
CIE-LAB	lab(63.55, -13.13, -27.97)
CIE-LCH	lch(63.55, 30.90, 244.84°)
OKLab	oklab(68.02% -0.0611 -0.0781)
OKLCH	oklch(68.02% 0.099 232)
XYZ	xyz(27.2659, 32.2529, 61.2769)
Luminance	0.3226 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A3CB #CB7951

analogous

#51CBB6 #51A3CB #5166CB

triadic

#51A3CB #CB51A3 #A3CB51

tetradic

#51A3CB #B651CB #CB7951 #66CB51

square

#51A3CB #B651CB #CB7951 #66CB51

split-complementary

#51A3CB #CB5166 #CBB651

monochromatic

#25607C #3384AC #51A3CB #80BCD9 #AFD5E7

Accessibility & contrast

On white

2.82

#51A3CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.45

#51A3CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A3CB

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A3CB	#FFFFFF	#000000	##000000
##51A3CB	1.00	2.82	7.45	7.45
#FFFFFF	2.82	1.00	21.00	21.00
#000000	7.45	21.00	1.00	1.00
##000000	7.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FA1CD

Deuteranopia (green-blind)

#7E94CA

Tritanopia (blue-blind)

#00AEB0

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #51a3cb;
/* rgb */ color: rgb(81, 163, 203);
/* oklch */ color: oklch(68.0% 0.099 232.0);

Tailwind

colors: {
  custom: {
    50: '#8cbedb',
    500: '#51a3cb',
    950: '#000000',
  },
}

SCSS

$custom: #51a3cb;
$custom-light: #8cbedb;
$custom-dark: #000000;

JSON

{
  "hex": "#51a3cb",
  "rgb": {
    "r": 81,
    "g": 163,
    "b": 203
  },
  "hsl": {
    "h": 199.672,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.68022,
    "c": 0.0992,
    "h": 232
  },
  "luminance": 0.32256
}

Semantic roles & 50–950 ramp

primary

#51A3CB

secondary

#D5B3A3

accent

#7B4ADD

background

#F9FBFD

surface

#F1F6FA

border

#CBD0D3

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51A3CB

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

Preview Lab → · Contrast checker → · Palette generator →