#51A0DC#51A0DC

#51A0DC is a light, moderate cyan. Relative luminance 0.321; OKLCH L 68.1% C 0.118 H 243.8°. Best body text is #000000 at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#51A0DC
RGB	rgb(81, 160, 220)
HSL	hsl(206, 67%, 59%)
HSV	hsv(206, 63%, 86%)
CMYK	cmyk(63.2%, 27.3%, 0%, 13.7%)
CIE-LAB	lab(63.39, -6.06, -37.66)
CIE-LCH	lch(63.39, 38.14, 260.86°)
OKLab	oklab(68.13% -0.0522 -0.106)
OKLCH	oklch(68.13% 0.118 243.8)
XYZ	xyz(28.8776, 32.0554, 72.3617)
Luminance	0.3206 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A0DC #DC8D51

analogous

#51DCD2 #51A0DC #515BDC

triadic

#51A0DC #DC51A0 #A0DC51

tetradic

#51A0DC #D251DC #DC8D51 #5BDC51

square

#51A0DC #D251DC #DC8D51 #5BDC51

split-complementary

#51A0DC #DC515B #DCD251

monochromatic

#1E6195 #2883C8 #51A0DC #84BCE6 #B7D8F0

Accessibility & contrast

On white

2.83

#51A0DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.41

#51A0DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A0DC

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A0DC	#FFFFFF	#000000	##000000
##51A0DC	1.00	2.83	7.41	7.41
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.41	21.00	1.00	1.00
##000000	7.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85A1DF

Deuteranopia (green-blind)

#7293DB

Tritanopia (blue-blind)

#00AFB5

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #51a0dc;
/* rgb */ color: rgb(81, 160, 220);
/* oklch */ color: oklch(68.1% 0.118 243.8);

Tailwind

colors: {
  custom: {
    50: '#8ebbe7',
    500: '#51a0dc',
    950: '#000000',
  },
}

SCSS

$custom: #51a0dc;
$custom-light: #8ebbe7;
$custom-dark: #000000;

JSON

{
  "hex": "#51a0dc",
  "rgb": {
    "r": 81,
    "g": 160,
    "b": 220
  },
  "hsl": {
    "h": 205.899,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.68125,
    "c": 0.11821,
    "h": 243.8
  },
  "luminance": 0.32058
}

Semantic roles & 50–950 ramp

primary

#51A0DC

secondary

#E0C1A9

accent

#883EE9

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #51A0DC

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

Preview Lab → · Contrast checker → · Palette generator →