#51A0CA#51A0CA

#51A0CA is a light, moderate cyan. Relative luminance 0.312; OKLCH L 67.3% C 0.099 H 234.1°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).

Color values

HEX#51A0CA
RGBrgb(81, 160, 202)
HSLhsl(201, 53%, 55%)
HSVhsv(201, 60%, 79%)
CMYKcmyk(59.9%, 20.8%, 0%, 20.8%)
CIE-LABlab(62.64, -11.81, -28.82)
CIE-LCHlch(62.64, 31.15, 247.71°)
OKLaboklab(67.28% -0.0582 -0.0806)
OKLCHoklch(67.28% 0.099 234.1)
XYZxyz(26.6207, 31.1527, 60.4758)
Luminance0.3115 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51A0CA #CA7B51
analogous
#51CAB7 #51A0CA #5164CA
triadic
#51A0CA #CA51A0 #A0CA51
tetradic
#51A0CA #B751CA #CA7B51 #64CA51
square
#51A0CA #B751CA #CA7B51 #64CA51
split-complementary
#51A0CA #CA5164 #CAB751
monochromatic
#255D7B #3481AA #51A0CA #80BAD8 #AFD3E7

Accessibility & contrast

On white

2.90
#51A0CA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.23
#51A0CA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A0CA
7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51A0CA#FFFFFF#000000##000000
##51A0CA1.002.907.237.23
#FFFFFF2.901.0021.0021.00
#0000007.2321.001.001.00
##0000007.2321.001.001.00

Color blindness preview

Protanopia (red-blind)
#8C9FCC
Deuteranopia (green-blind)
#7B92C9
Tritanopia (blue-blind)
#00ABAE
Achromatopsia (no color)
#979797

Design tokens & code

CSS
--color: #51a0ca;
/* rgb */ color: rgb(81, 160, 202);
/* oklch */ color: oklch(67.3% 0.099 234.1);
Tailwind
colors: {
  custom: {
    50: '#8cbcda',
    500: '#51a0ca',
    950: '#000000',
  },
}
SCSS
$custom: #51a0ca;
$custom-light: #8cbcda;
$custom-dark: #000000;
JSON
{
  "hex": "#51a0ca",
  "rgb": {
    "r": 81,
    "g": 160,
    "b": 202
  },
  "hsl": {
    "h": 200.826,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.67281,
    "c": 0.09942,
    "h": 234.1
  },
  "luminance": 0.31155
}

Semantic roles & 50–950 ramp

primary
#51A0CA
secondary
#D5B4A2
accent
#7E4BDD
background
#F9FBFD
surface
#F1F6FA
border
#CBD0D3
text
#0D1214
muted
#7E8183

Preview Lab

Preview with #51A0CA

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

Preview Lab → · Contrast checker → · Palette generator →

#51A0CA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva