#51A3BC#51A3BC

#51A3BC is a light, moderate cyan. Relative luminance 0.316; OKLCH L 67.4% C 0.088 H 220.4°. Best body text is #000000 at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#51A3BC
RGB	rgb(81, 163, 188)
HSL	hsl(194, 44%, 53%)
HSV	hsv(194, 57%, 74%)
CMYK	cmyk(56.9%, 13.3%, 0%, 26.3%)
CIE-LAB	lab(62.99, -17.71, -20.46)
CIE-LCH	lch(62.99, 27.06, 229.11°)
OKLab	oklab(67.38% -0.0667 -0.0568)
OKLCH	oklch(67.38% 0.088 220.4)
XYZ	xyz(25.5641, 31.5721, 52.3140)
Luminance	0.3157 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A3BC #BC6A51

analogous

#51BCA0 #51A3BC #516DBC

triadic

#51A3BC #BC51A3 #A3BC51

tetradic

#51A3BC #A051BC #BC6A51 #6DBC51

square

#51A3BC #A051BC #BC6A51 #6DBC51

split-complementary

#51A3BC #BC516D #BCA051

monochromatic

#295B6A #3A8096 #51A3BC #7DBACD #A9D2DE

Accessibility & contrast

On white

2.87

#51A3BC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.31

#51A3BC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A3BC

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A3BC	#FFFFFF	#000000	##000000
##51A3BC	1.00	2.87	7.31	7.31
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.31	21.00	1.00	1.00
##000000	7.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#949FBD

Deuteranopia (green-blind)

#8493BC

Tritanopia (blue-blind)

#00ABAB

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #51a3bc;
/* rgb */ color: rgb(81, 163, 188);
/* oklch */ color: oklch(67.4% 0.088 220.4);

Tailwind

colors: {
  custom: {
    50: '#8bbed0',
    500: '#51a3bc',
    950: '#000000',
  },
}

SCSS

$custom: #51a3bc;
$custom-light: #8bbed0;
$custom-dark: #000000;

JSON

{
  "hex": "#51a3bc",
  "rgb": {
    "r": 81,
    "g": 163,
    "b": 188
  },
  "hsl": {
    "h": 194.019,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.67385,
    "c": 0.08763,
    "h": 220.4
  },
  "luminance": 0.31575
}

Semantic roles & 50–950 ramp

primary

#51A3BC

secondary

#CCA89D

accent

#7254D4

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0D1214

muted

#7D8182

Preview Lab

Preview with #51A3BC

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

Preview Lab → · Contrast checker → · Palette generator →