#51A3CA#51A3CA

#51A3CA is a light, moderate cyan. Relative luminance 0.322; OKLCH L 68.0% C 0.098 H 231.3°. Best body text is #000000 at 7.44:1 contrast (WCAG AA passes).

Color values

HEX#51A3CA
RGBrgb(81, 163, 202)
HSLhsl(199, 53%, 55%)
HSVhsv(199, 60%, 79%)
CMYKcmyk(59.9%, 19.3%, 0%, 20.8%)
CIE-LABlab(63.51, -13.45, -27.47)
CIE-LCHlch(63.51, 30.58, 243.92°)
OKLaboklab(67.98% -0.0615 -0.0767)
OKLCHoklch(67.98% 0.098 231.3)
XYZxyz(27.1471, 32.2054, 60.6513)
Luminance0.3221 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51A3CA #CA7851
analogous
#51CAB5 #51A3CA #5166CA
triadic
#51A3CA #CA51A3 #A3CA51
tetradic
#51A3CA #B551CA #CA7851 #66CA51
square
#51A3CA #B551CA #CA7851 #66CA51
split-complementary
#51A3CA #CA5166 #CAB551
monochromatic
#25607B #3484AA #51A3CA #80BCD8 #AFD5E7

Accessibility & contrast

On white

2.82
#51A3CA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.44
#51A3CA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A3CA
7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51A3CA#FFFFFF#000000##000000
##51A3CA1.002.827.447.44
#FFFFFF2.821.0021.0021.00
#0000007.4421.001.001.00
##0000007.4421.001.001.00

Color blindness preview

Protanopia (red-blind)
#90A1CC
Deuteranopia (green-blind)
#7F94C9
Tritanopia (blue-blind)
#00AEB0
Achromatopsia (no color)
#9A9A9A

Design tokens & code

CSS
--color: #51a3ca;
/* rgb */ color: rgb(81, 163, 202);
/* oklch */ color: oklch(68.0% 0.098 231.3);
Tailwind
colors: {
  custom: {
    50: '#8cbeda',
    500: '#51a3ca',
    950: '#000000',
  },
}
SCSS
$custom: #51a3ca;
$custom-light: #8cbeda;
$custom-dark: #000000;
JSON
{
  "hex": "#51a3ca",
  "rgb": {
    "r": 81,
    "g": 163,
    "b": 202
  },
  "hsl": {
    "h": 199.339,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.67978,
    "c": 0.09831,
    "h": 231.3
  },
  "luminance": 0.32208
}

Semantic roles & 50–950 ramp

primary
#51A3CA
secondary
#D5B2A2
accent
#7A4BDD
background
#F9FBFD
surface
#F1F6FA
border
#CBD0D3
text
#0D1214
muted
#7E8183

Preview Lab

Preview with #51A3CA

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

Preview Lab → · Contrast checker → · Palette generator →

#51A3CA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva