#51A1DC#51A1DC

#51A1DC is a light, moderate cyan. Relative luminance 0.324; OKLCH L 68.4% C 0.118 H 243.0°. Best body text is #000000 at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#51A1DC
RGB	rgb(81, 161, 220)
HSL	hsl(205, 67%, 59%)
HSV	hsv(205, 63%, 86%)
CMYK	cmyk(63.2%, 26.8%, 0%, 13.7%)
CIE-LAB	lab(63.67, -6.62, -37.21)
CIE-LCH	lch(63.67, 37.79, 259.91°)
OKLab	oklab(68.35% -0.0533 -0.1047)
OKLCH	oklch(68.35% 0.118 243)
XYZ	xyz(29.0516, 32.4035, 72.4197)
Luminance	0.3241 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A1DC #DC8C51

analogous

#51DCD2 #51A1DC #515CDC

triadic

#51A1DC #DC51A1 #A1DC51

tetradic

#51A1DC #D251DC #DC8C51 #5CDC51

square

#51A1DC #D251DC #DC8C51 #5CDC51

split-complementary

#51A1DC #DC515C #DCD251

monochromatic

#1E6295 #2884C8 #51A1DC #84BDE6 #B7D8F0

Accessibility & contrast

On white

2.81

#51A1DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.48

#51A1DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A1DC

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A1DC	#FFFFFF	#000000	##000000
##51A1DC	1.00	2.81	7.48	7.48
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.48	21.00	1.00	1.00
##000000	7.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#87A2DF

Deuteranopia (green-blind)

#7494DB

Tritanopia (blue-blind)

#00AFB5

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #51a1dc;
/* rgb */ color: rgb(81, 161, 220);
/* oklch */ color: oklch(68.4% 0.118 243.0);

Tailwind

colors: {
  custom: {
    50: '#8ebce7',
    500: '#51a1dc',
    950: '#000000',
  },
}

SCSS

$custom: #51a1dc;
$custom-light: #8ebce7;
$custom-dark: #000000;

JSON

{
  "hex": "#51a1dc",
  "rgb": {
    "r": 81,
    "g": 161,
    "b": 220
  },
  "hsl": {
    "h": 205.468,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.68351,
    "c": 0.11751,
    "h": 243
  },
  "luminance": 0.32406
}

Semantic roles & 50–950 ramp

primary

#51A1DC

secondary

#E0C0A9

accent

#873EE9

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0D1216

muted

#7E8184

Preview Lab

Preview with #51A1DC

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

Preview Lab → · Contrast checker → · Palette generator →