#51A7BE#51A7BE

#51A7BE is a light, moderate cyan. Relative luminance 0.331; OKLCH L 68.4% C 0.089 H 217.8°. Best body text is #000000 at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#51A7BE
RGB	rgb(81, 167, 190)
HSL	hsl(193, 46%, 53%)
HSV	hsv(193, 57%, 75%)
CMYK	cmyk(57.4%, 12.1%, 0%, 25.5%)
CIE-LAB	lab(64.24, -19.22, -19.66)
CIE-LCH	lch(64.24, 27.50, 225.65°)
OKLab	oklab(68.41% -0.0704 -0.0545)
OKLCH	oklch(68.41% 0.089 217.8)
XYZ	xyz(26.5026, 33.1019, 53.6979)
Luminance	0.3310 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A7BE #BE6851

analogous

#51BE9F #51A7BE #5170BE

triadic

#51A7BE #BE51A7 #A7BE51

tetradic

#51A7BE #9F51BE #BE6851 #70BE51

square

#51A7BE #9F51BE #BE6851 #70BE51

split-complementary

#51A7BE #BE5170 #BE9F51

monochromatic

#285E6C #398599 #51A7BE #7EBECF #AAD4DF

Accessibility & contrast

On white

2.76

#51A7BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.62

#51A7BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A7BE

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A7BE	#FFFFFF	#000000	##000000
##51A7BE	1.00	2.76	7.62	7.62
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.62	21.00	1.00	1.00
##000000	7.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98A3BF

Deuteranopia (green-blind)

#8897BE

Tritanopia (blue-blind)

#00AFAE

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #51a7be;
/* rgb */ color: rgb(81, 167, 190);
/* oklch */ color: oklch(68.4% 0.089 217.8);

Tailwind

colors: {
  custom: {
    50: '#8bc1d1',
    500: '#51a7be',
    950: '#000000',
  },
}

SCSS

$custom: #51a7be;
$custom-light: #8bc1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#51a7be",
  "rgb": {
    "r": 81,
    "g": 167,
    "b": 190
  },
  "hsl": {
    "h": 192.661,
    "s": 45.607,
    "l": 53.137
  },
  "oklch": {
    "l": 0.68414,
    "c": 0.08907,
    "h": 217.8
  },
  "luminance": 0.33104
}

Semantic roles & 50–950 ramp

primary

#51A7BE

secondary

#CDA89E

accent

#6E53D5

background

#F9FBFC

surface

#F1F7F9

border

#CBD0D2

text

#0D1214

muted

#7E8182

Preview Lab

Preview with #51A7BE

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

Preview Lab → · Contrast checker → · Palette generator →