#66A0F8#66A0F8

#66A0F8 is a light, vivid blue. Relative luminance 0.347; OKLCH L 70.5% C 0.143 H 258.5°. Best body text is #000000 at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#66A0F8
RGB	rgb(102, 160, 248)
HSL	hsl(216, 91%, 69%)
HSV	hsv(216, 59%, 97%)
CMYK	cmyk(58.9%, 35.5%, 0%, 2.7%)
CIE-LAB	lab(65.55, 6.85, -49.60)
CIE-LCH	lch(65.55, 50.07, 277.86°)
OKLab	oklab(70.48% -0.0286 -0.1405)
OKLCH	oklch(70.48% 0.143 258.5)
XYZ	xyz(34.9876, 34.7406, 93.6506)
Luminance	0.3474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A0F8 #F8BE66

analogous

#66E9F8 #66A0F8 #7566F8

triadic

#66A0F8 #F866A0 #A0F866

tetradic

#66A0F8 #F866E9 #F8BE66 #66F875

square

#66A0F8 #F866E9 #F8BE66 #66F875

split-complementary

#66A0F8 #F87566 #E9F866

monochromatic

#0A5CDA #2B7CF5 #66A0F8 #A1C4FB #DBE9FD

Accessibility & contrast

On white

2.64

#66A0F8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.95

#66A0F8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A0F8

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A0F8	#FFFFFF	#000000	##000000
##66A0F8	1.00	2.64	7.95	7.95
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.95	21.00	1.00	1.00
##000000	7.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7BA7FC

Deuteranopia (green-blind)

#6899F6

Tritanopia (blue-blind)

#00B4C0

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #66a0f8;
/* rgb */ color: rgb(102, 160, 248);
/* oklch */ color: oklch(70.5% 0.143 258.5);

Tailwind

colors: {
  custom: {
    50: '#9cbbfb',
    500: '#66a0f8',
    950: '#000000',
  },
}

SCSS

$custom: #66a0f8;
$custom-light: #9cbbfb;
$custom-dark: #000000;

JSON

{
  "hex": "#66a0f8",
  "rgb": {
    "r": 102,
    "g": 160,
    "b": 248
  },
  "hsl": {
    "h": 216.164,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.70478,
    "c": 0.14338,
    "h": 258.5
  },
  "luminance": 0.34744
}

Semantic roles & 50–950 ramp

primary

#66A0F8

secondary

#F3E1C7

accent

#8A00E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #66A0F8

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

Preview Lab → · Contrast checker → · Palette generator →