#51ABD3#51ABD3

#51ABD3 is a light, moderate cyan. Relative luminance 0.356; OKLCH L 70.2% C 0.104 H 229.8°. Best body text is #000000 at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#51ABD3
RGB	rgb(81, 171, 211)
HSL	hsl(198, 60%, 57%)
HSV	hsv(198, 62%, 83%)
CMYK	cmyk(61.6%, 19%, 0%, 17.3%)
CIE-LAB	lab(66.19, -14.96, -28.33)
CIE-LCH	lch(66.19, 32.03, 242.17°)
OKLab	oklab(70.23% -0.0668 -0.0791)
OKLCH	oklch(70.23% 0.104 229.8)
XYZ	xyz(29.7095, 35.5753, 66.9164)
Luminance	0.3558 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ABD3 #D37951

analogous

#51D3BA #51ABD3 #516AD3

triadic

#51ABD3 #D351AB #ABD351

tetradic

#51ABD3 #BA51D3 #D37951 #6AD351

square

#51ABD3 #BA51D3 #D37951 #6AD351

split-complementary

#51ABD3 #D3516A #D3BA51

monochromatic

#226887 #2F8EB8 #51ABD3 #82C3DF #B3DAEC

Accessibility & contrast

On white

2.59

#51ABD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.12

#51ABD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABD3

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ABD3	#FFFFFF	#000000	##000000
##51ABD3	1.00	2.59	8.12	8.12
#FFFFFF	2.59	1.00	21.00	21.00
#000000	8.12	21.00	1.00	1.00
##000000	8.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A9D5

Deuteranopia (green-blind)

#849BD2

Tritanopia (blue-blind)

#00B6B8

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #51abd3;
/* rgb */ color: rgb(81, 171, 211);
/* oklch */ color: oklch(70.2% 0.104 229.8);

Tailwind

colors: {
  custom: {
    50: '#8ec4e0',
    500: '#51abd3',
    950: '#000000',
  },
}

SCSS

$custom: #51abd3;
$custom-light: #8ec4e0;
$custom-dark: #000000;

JSON

{
  "hex": "#51abd3",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 211
  },
  "hsl": {
    "h": 198.462,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.70229,
    "c": 0.10356,
    "h": 229.8
  },
  "luminance": 0.35578
}

Semantic roles & 50–950 ramp

primary

#51ABD3

secondary

#DAB6A6

accent

#7645E3

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51ABD3

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

Preview Lab → · Contrast checker → · Palette generator →