#636FF7#636FF7
#636FF7 is a mid, highly saturated blue. Relative luminance 0.207; OKLCH L 60.6% C 0.201 H 274.9°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).
Color values
| HEX | #636FF7 |
|---|---|
| RGB | rgb(99, 111, 247) |
| HSL | hsl(235, 90%, 68%) |
| HSV | hsv(235, 60%, 97%) |
| CMYK | cmyk(59.9%, 55.1%, 0%, 3.1%) |
| CIE-LAB | lab(52.66, 35.21, -69.69) |
| CIE-LCH | lch(52.66, 78.08, 296.81°) |
| OKLab | oklab(60.57% 0.0171 -0.2) |
| OKLCH | oklch(60.57% 0.201 274.9) |
| XYZ | xyz(27.6130, 20.7348, 90.5247) |
| Luminance | 0.2074 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower
#6A79F7
ΔE00 3.15
Mediumslateblue
#7B68EE
ΔE00 4.86
Cornflower Blue
#5170D7
ΔE00 5.57
Royal Blue
#4169E1
ΔE00 6.13
Lightish Blue
#3D7AFD
ΔE00 6.54
Bright Blue
#0165FC
ΔE00 7.27
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#636FF7 #F7EB63
analogous
#63B9F7 #636FF7 #A163F7
triadic
#636FF7 #F7636F #6FF763
tetradic
#636FF7 #F763B9 #F7EB63 #63F7A1
square
#636FF7 #F763B9 #F7EB63 #63F7A1
split-complementary
#636FF7 #F7A163 #B9F763
monochromatic
#0B1BD5 #2939F4 #636FF7 #9DA5FA #D7DAFD
Accessibility & contrast
On white
4.08
#636FF7 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.15
#636FF7 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #636FF7
5.15:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##636FF7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##636FF7 | 1.00 | 4.08 | 5.15 | 5.15 |
| #FFFFFF | 4.08 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.15 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.15 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0084FC
Deuteranopia (green-blind)
#0077F4
Tritanopia (blue-blind)
#008FA8
Achromatopsia (no color)
#7E7E7E
Design tokens & code
CSS
--color: #636ff7; /* rgb */ color: rgb(99, 111, 247); /* oklch */ color: oklch(60.6% 0.201 274.9);
Tailwind
colors: {
custom: {
50: '#9c98fb',
500: '#636ff7',
950: '#000000',
},
}SCSS
$custom: #636ff7; $custom-light: #9c98fb; $custom-dark: #000000;
JSON
{
"hex": "#636ff7",
"rgb": {
"r": 99,
"g": 111,
"b": 247
},
"hsl": {
"h": 235.135,
"s": 90.244,
"l": 67.843
},
"oklch": {
"l": 0.60572,
"c": 0.20078,
"h": 274.9
},
"luminance": 0.20737
}Semantic roles & 50–950 ramp
primary
#636FF7
secondary
#F2EEC4
accent
#D300E6
background
#FAF9FF
surface
#F4F2FF
border
#CECCD7
text
#0F0D17
muted
#7F7E85