#66BCF2#66BCF2

#66BCF2 is a light, moderate cyan. Relative luminance 0.452; OKLCH L 76.3% C 0.114 H 238.3°. Best body text is #000000 at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#66BCF2
RGB	rgb(102, 188, 242)
HSL	hsl(203, 84%, 67%)
HSV	hsv(203, 58%, 95%)
CMYK	cmyk(57.9%, 22.3%, 0%, 5.1%)
CIE-LAB	lab(73.02, -10.64, -34.65)
CIE-LCH	lch(73.02, 36.24, 252.93°)
OKLab	oklab(76.27% -0.0599 -0.097)
OKLCH	oklch(76.27% 0.114 238.3)
XYZ	xyz(39.4837, 45.1984, 90.6306)
Luminance	0.4520 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BCF2 #F29C66

analogous

#66F2E2 #66BCF2 #6676F2

triadic

#66BCF2 #F266BC #BCF266

tetradic

#66BCF2 #E266F2 #F29C66 #76F266

square

#66BCF2 #E266F2 #F29C66 #76F266

split-complementary

#66BCF2 #F26676 #F2E266

monochromatic

#1184CC #2EA3ED #66BCF2 #9ED5F7 #D7EDFC

Accessibility & contrast

On white

2.09

#66BCF2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.04

#66BCF2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BCF2

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BCF2	#FFFFFF	#000000	##000000
##66BCF2	1.00	2.09	10.04	10.04
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.04	21.00	1.00	1.00
##000000	10.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3BBF5

Deuteranopia (green-blind)

#90ADF1

Tritanopia (blue-blind)

#00CACE

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #66bcf2;
/* rgb */ color: rgb(102, 188, 242);
/* oklch */ color: oklch(76.3% 0.114 238.3);

Tailwind

colors: {
  custom: {
    50: '#9cd0f6',
    500: '#66bcf2',
    950: '#000000',
  },
}

SCSS

$custom: #66bcf2;
$custom-light: #9cd0f6;
$custom-dark: #000000;

JSON

{
  "hex": "#66bcf2",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 242
  },
  "hsl": {
    "h": 203.143,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.76268,
    "c": 0.11397,
    "h": 238.3
  },
  "luminance": 0.45202
}

Semantic roles & 50–950 ramp

primary

#66BCF2

secondary

#F0D5C4

accent

#5A05E1

background

#FAFCFF

surface

#F4F9FE

border

#CED2D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #66BCF2

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

Preview Lab → · Contrast checker → · Palette generator →