#51A4C8#51A4C8

#51A4C8 is a light, moderate cyan. Relative luminance 0.325; OKLCH L 68.1% C 0.096 H 228.9°. Best body text is #000000 at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#51A4C8
RGB	rgb(81, 164, 200)
HSL	hsl(198, 52%, 55%)
HSV	hsv(198, 60%, 78%)
CMYK	cmyk(59.5%, 18%, 0%, 21.6%)
CIE-LAB	lab(63.73, -14.60, -26.02)
CIE-LCH	lch(63.73, 29.84, 240.70°)
OKLab	oklab(68.12% -0.0633 -0.0726)
OKLCH	oklch(68.12% 0.096 228.9)
XYZ	xyz(27.0901, 32.4678, 59.4716)
Luminance	0.3247 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A4C8 #C87551

analogous

#51C8B0 #51A4C8 #5169C8

triadic

#51A4C8 #C851A4 #A4C851

tetradic

#51A4C8 #B051C8 #C87551 #69C851

square

#51A4C8 #B051C8 #C87551 #69C851

split-complementary

#51A4C8 #C85169 #C8B051

monochromatic

#266079 #3584A7 #51A4C8 #80BCD7 #AED5E5

Accessibility & contrast

On white

2.80

#51A4C8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.49

#51A4C8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A4C8

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A4C8	#FFFFFF	#000000	##000000
##51A4C8	1.00	2.80	7.49	7.49
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.49	21.00	1.00	1.00
##000000	7.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A1CA

Deuteranopia (green-blind)

#8195C8

Tritanopia (blue-blind)

#00AEB0

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #51a4c8;
/* rgb */ color: rgb(81, 164, 200);
/* oklch */ color: oklch(68.1% 0.096 228.9);

Tailwind

colors: {
  custom: {
    50: '#8cbfd8',
    500: '#51a4c8',
    950: '#000000',
  },
}

SCSS

$custom: #51a4c8;
$custom-light: #8cbfd8;
$custom-dark: #000000;

JSON

{
  "hex": "#51a4c8",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 200
  },
  "hsl": {
    "h": 198.151,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.68124,
    "c": 0.09631,
    "h": 228.9
  },
  "luminance": 0.3247
}

Semantic roles & 50–950 ramp

primary

#51A4C8

secondary

#D3B1A1

accent

#784CDB

background

#F9FBFD

surface

#F1F7FA

border

#CBD0D3

text

#0D1214

muted

#7E8183

Preview Lab

Preview with #51A4C8

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

Preview Lab → · Contrast checker → · Palette generator →