#6660F4#6660F4
#6660F4 is a mid, highly saturated blue. Relative luminance 0.177; OKLCH L 58.0% C 0.215 H 279.1°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).
Color values
| HEX | #6660F4 |
|---|---|
| RGB | rgb(102, 96, 244) |
| HSL | hsl(242, 87%, 67%) |
| HSV | hsv(242, 61%, 96%) |
| CMYK | cmyk(58.2%, 60.7%, 0%, 4.3%) |
| CIE-LAB | lab(49.16, 43.68, -73.69) |
| CIE-LCH | lch(49.16, 85.66, 300.65°) |
| OKLab | oklab(57.96% 0.0341 -0.2119) |
| OKLCH | oklch(57.96% 0.215 279.1) |
| XYZ | xyz(25.9863, 17.7203, 87.6214) |
| Luminance | 0.1772 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Mediumslateblue
#7B68EE
ΔE00 3.95
Dark Periwinkle
#665FD1
ΔE00 4.77
Light Indigo
#6D5ACF
ΔE00 5.63
Slate Blue
#6A5ACD
ΔE00 5.81
Warm Blue
#4B57DB
ΔE00 6.02
Purpley
#8756E4
ΔE00 6.54
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#6660F4 #EEF460
analogous
#60A4F4 #6660F4 #B060F4
triadic
#6660F4 #F46660 #60F466
tetradic
#6660F4 #F460A4 #EEF460 #60F4B0
square
#6660F4 #F460A4 #EEF460 #60F4B0
split-complementary
#6660F4 #F4B060 #A4F460
monochromatic
#160ECC #2F27F0 #6660F4 #9D99F8 #D4D2FC
Accessibility & contrast
On white
4.62
#6660F4 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.54
#6660F4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#FFFFFF on #6660F4
4.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##6660F4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##6660F4 | 1.00 | 4.62 | 4.54 | 4.62 |
| #FFFFFF | 4.62 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.54 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.62 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#007BF9
Deuteranopia (green-blind)
#006FF1
Tritanopia (blue-blind)
#0084A1
Achromatopsia (no color)
#757575
Design tokens & code
CSS
--color: #6660f4; /* rgb */ color: rgb(102, 96, 244); /* oklch */ color: oklch(58.0% 0.215 279.1);
Tailwind
colors: {
custom: {
50: '#9e8df9',
500: '#6660f4',
950: '#000000',
},
}SCSS
$custom: #6660f4; $custom-light: #9e8df9; $custom-dark: #000000;
JSON
{
"hex": "#6660f4",
"rgb": {
"r": 102,
"g": 96,
"b": 244
},
"hsl": {
"h": 242.432,
"s": 87.059,
"l": 66.667
},
"oklch": {
"l": 0.57964,
"c": 0.21459,
"h": 279.1
},
"luminance": 0.17722
}Semantic roles & 50–950 ramp
primary
#6660F4
secondary
#EEF0C0
accent
#E402DA
background
#FAF8FF
surface
#F4F0FF
border
#CECBD7
text
#100C17
muted
#7F7D85