#66B8FA#66B8FA

#66B8FA is a light, vivid cyan. Relative luminance 0.440; OKLCH L 75.7% C 0.125 H 244.8°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#66B8FA
RGB	rgb(102, 184, 250)
HSL	hsl(207, 94%, 69%)
HSV	hsv(207, 59%, 98%)
CMYK	cmyk(59.2%, 26.4%, 0%, 2%)
CIE-LAB	lab(72.23, -6.02, -40.20)
CIE-LCH	lch(72.23, 40.65, 261.48°)
OKLab	oklab(75.75% -0.0531 -0.113)
OKLCH	oklch(75.75% 0.125 244.8)
XYZ	xyz(39.8689, 44.0042, 96.8165)
Luminance	0.4401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B8FA #FAA866

analogous

#66FAF2 #66B8FA #666EFA

triadic

#66B8FA #FA66B8 #B8FA66

tetradic

#66B8FA #F266FA #FAA866 #6EFA66

square

#66B8FA #F266FA #FAA866 #6EFA66

split-complementary

#66B8FA #FA666E #FAF266

monochromatic

#077EDE #2B9CF8 #66B8FA #A1D4FC #DDEFFE

Accessibility & contrast

On white

2.14

#66B8FA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#66B8FA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B8FA

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B8FA	#FFFFFF	#000000	##000000
##66B8FA	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB9FD

Deuteranopia (green-blind)

#87ABF9

Tritanopia (blue-blind)

#00C8CF

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #66b8fa;
/* rgb */ color: rgb(102, 184, 250);
/* oklch */ color: oklch(75.7% 0.125 244.8);

Tailwind

colors: {
  custom: {
    50: '#9dcdfc',
    500: '#66b8fa',
    950: '#000000',
  },
}

SCSS

$custom: #66b8fa;
$custom-light: #9dcdfc;
$custom-dark: #000000;

JSON

{
  "hex": "#66b8fa",
  "rgb": {
    "r": 102,
    "g": 184,
    "b": 250
  },
  "hsl": {
    "h": 206.757,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.75749,
    "c": 0.12485,
    "h": 244.8
  },
  "luminance": 0.44008
}

Semantic roles & 50–950 ramp

primary

#66B8FA

secondary

#F4DCC8

accent

#6600E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66B8FA

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

Preview Lab → · Contrast checker → · Palette generator →