#66B3F2#66B3F2

#66B3F2 is a light, moderate cyan. Relative luminance 0.415; OKLCH L 74.3% C 0.119 H 245.1°. Best body text is #000000 at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#66B3F2
RGB	rgb(102, 179, 242)
HSL	hsl(207, 84%, 67%)
HSV	hsv(207, 58%, 95%)
CMYK	cmyk(57.9%, 26%, 0%, 5.1%)
CIE-LAB	lab(70.51, -5.76, -38.56)
CIE-LCH	lch(70.51, 38.98, 261.51°)
OKLab	oklab(74.28% -0.0503 -0.1083)
OKLCH	oklch(74.28% 0.119 245.1)
XYZ	xyz(37.6207, 41.4724, 90.0096)
Luminance	0.4148 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B3F2 #F2A566

analogous

#66F2EB #66B3F2 #666DF2

triadic

#66B3F2 #F266B3 #B3F266

tetradic

#66B3F2 #EB66F2 #F2A566 #6DF266

square

#66B3F2 #EB66F2 #F2A566 #6DF266

split-complementary

#66B3F2 #F2666D #F2EB66

monochromatic

#1178CC #2E97ED #66B3F2 #9ECFF7 #D7EBFC

Accessibility & contrast

On white

2.26

#66B3F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.30

#66B3F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B3F2

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B3F2	#FFFFFF	#000000	##000000
##66B3F2	1.00	2.26	9.30	9.30
#FFFFFF	2.26	1.00	21.00	21.00
#000000	9.30	21.00	1.00	1.00
##000000	9.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98B4F5

Deuteranopia (green-blind)

#85A6F1

Tritanopia (blue-blind)

#00C2C9

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #66b3f2;
/* rgb */ color: rgb(102, 179, 242);
/* oklch */ color: oklch(74.3% 0.119 245.1);

Tailwind

colors: {
  custom: {
    50: '#9cc9f6',
    500: '#66b3f2',
    950: '#000000',
  },
}

SCSS

$custom: #66b3f2;
$custom-light: #9cc9f6;
$custom-dark: #000000;

JSON

{
  "hex": "#66b3f2",
  "rgb": {
    "r": 102,
    "g": 179,
    "b": 242
  },
  "hsl": {
    "h": 207,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.74277,
    "c": 0.11939,
    "h": 245.1
  },
  "luminance": 0.41476
}

Semantic roles & 50–950 ramp

primary

#66B3F2

secondary

#F0D8C4

accent

#6805E1

background

#FAFCFF

surface

#F4F8FE

border

#CED1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66B3F2

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

Preview Lab → · Contrast checker → · Palette generator →