#6661EF#6661EF
#6661EF is a mid, highly saturated blue. Relative luminance 0.176; OKLCH L 57.7% C 0.207 H 279.3°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).
Color values
| HEX | #6661EF |
|---|---|
| RGB | rgb(102, 97, 239) |
| HSL | hsl(242, 82%, 66%) |
| HSV | hsv(242, 59%, 94%) |
| CMYK | cmyk(57.3%, 59.4%, 0%, 6.3%) |
| CIE-LAB | lab(49.01, 41.53, -71.13) |
| CIE-LCH | lch(49.01, 82.36, 300.28°) |
| OKLab | oklab(57.74% 0.0334 -0.2043) |
| OKLCH | oklch(57.74% 0.207 279.3) |
| XYZ | xyz(25.3292, 17.6044, 83.7079) |
| Luminance | 0.1761 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Mediumslateblue
#7B68EE
ΔE00 3.88
Dark Periwinkle
#665FD1
ΔE00 4.19
Light Indigo
#6D5ACF
ΔE00 5.21
Slate Blue
#6A5ACD
ΔE00 5.36
Warm Blue
#4B57DB
ΔE00 5.73
Purpley
#8756E4
ΔE00 6.59
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#6661EF #EAEF61
analogous
#61A3EF #6661EF #AD61EF
triadic
#6661EF #EF6661 #61EF66
tetradic
#6661EF #EF61A3 #EAEF61 #61EFAD
square
#6661EF #EF61A3 #EAEF61 #61EFAD
split-complementary
#6661EF #EFAD61 #A3EF61
monochromatic
#1A14C2 #3029E9 #6661EF #9C99F5 #D2D0FA
Accessibility & contrast
On white
4.64
#6661EF on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.52
#6661EF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#FFFFFF on #6661EF
4.64:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##6661EF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##6661EF | 1.00 | 4.64 | 4.52 | 4.64 |
| #FFFFFF | 4.64 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.52 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.64 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#007AF4
Deuteranopia (green-blind)
#006FEC
Tritanopia (blue-blind)
#0B839F
Achromatopsia (no color)
#747474
Design tokens & code
CSS
--color: #6661ef; /* rgb */ color: rgb(102, 97, 239); /* oklch */ color: oklch(57.7% 0.207 279.3);
Tailwind
colors: {
custom: {
50: '#9d8ef5',
500: '#6661ef',
950: '#000000',
},
}SCSS
$custom: #6661ef; $custom-light: #9d8ef5; $custom-dark: #000000;
JSON
{
"hex": "#6661ef",
"rgb": {
"r": 102,
"g": 97,
"b": 239
},
"hsl": {
"h": 242.113,
"s": 81.609,
"l": 65.882
},
"oklch": {
"l": 0.57744,
"c": 0.20703,
"h": 279.3
},
"luminance": 0.17606
}Semantic roles & 50–950 ramp
primary
#6661EF
secondary
#ECEDBE
accent
#DE08D6
background
#FAF8FF
surface
#F4F0FF
border
#CECBD7
text
#100C17
muted
#7F7D85