#66B4F2#66B4F2

#66B4F2 is a light, moderate cyan. Relative luminance 0.419; OKLCH L 74.5% C 0.119 H 244.4°. Best body text is #000000 at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#66B4F2
RGB	rgb(102, 180, 242)
HSL	hsl(207, 84%, 67%)
HSV	hsv(207, 58%, 95%)
CMYK	cmyk(57.9%, 25.6%, 0%, 5.1%)
CIE-LAB	lab(70.78, -6.30, -38.12)
CIE-LCH	lch(70.78, 38.64, 260.61°)
OKLab	oklab(74.5% -0.0514 -0.107)
OKLCH	oklch(74.5% 0.119 244.4)
XYZ	xyz(37.8219, 41.8747, 90.0766)
Luminance	0.4188 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B4F2 #F2A466

analogous

#66F2EA #66B4F2 #666EF2

triadic

#66B4F2 #F266B4 #B4F266

tetradic

#66B4F2 #EA66F2 #F2A466 #6EF266

square

#66B4F2 #EA66F2 #F2A466 #6EF266

split-complementary

#66B4F2 #F2666E #F2EA66

monochromatic

#1179CC #2E98ED #66B4F2 #9ED0F7 #D7EBFC

Accessibility & contrast

On white

2.24

#66B4F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.38

#66B4F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B4F2

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B4F2	#FFFFFF	#000000	##000000
##66B4F2	1.00	2.24	9.38	9.38
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.38	21.00	1.00	1.00
##000000	9.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99B5F5

Deuteranopia (green-blind)

#86A7F1

Tritanopia (blue-blind)

#00C3C9

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #66b4f2;
/* rgb */ color: rgb(102, 180, 242);
/* oklch */ color: oklch(74.5% 0.119 244.4);

Tailwind

colors: {
  custom: {
    50: '#9ccaf6',
    500: '#66b4f2',
    950: '#000000',
  },
}

SCSS

$custom: #66b4f2;
$custom-light: #9ccaf6;
$custom-dark: #000000;

JSON

{
  "hex": "#66b4f2",
  "rgb": {
    "r": 102,
    "g": 180,
    "b": 242
  },
  "hsl": {
    "h": 206.571,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.74497,
    "c": 0.1187,
    "h": 244.4
  },
  "luminance": 0.41878
}

Semantic roles & 50–950 ramp

primary

#66B4F2

secondary

#F0D7C4

accent

#6605E1

background

#FAFCFF

surface

#F4F8FE

border

#CED1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66B4F2

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

Preview Lab → · Contrast checker → · Palette generator →