#648EB4#648EB4
#648EB4 is a light, moderate cyan. Relative luminance 0.254; OKLCH L 63.1% C 0.074 H 246.6°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).
Color values
| HEX | #648EB4 |
|---|---|
| RGB | rgb(100, 142, 180) |
| HSL | hsl(209, 35%, 55%) |
| HSV | hsv(209, 44%, 71%) |
| CMYK | cmyk(44.4%, 21.1%, 0%, 29.4%) |
| CIE-LAB | lab(57.41, -4.12, -24.41) |
| CIE-LCH | lch(57.41, 24.75, 260.41°) |
| OKLab | oklab(63.09% -0.0294 -0.0678) |
| OKLCH | oklch(63.09% 0.074 246.6) |
| XYZ | xyz(23.1640, 25.3491, 46.8434) |
| Luminance | 0.2535 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Faded Blue
#658CBB
ΔE00 2.49
Dusty Blue
#5A86AD
ΔE00 2.95
Off Blue
#5684AE
ΔE00 3.78
Cool Blue
#4984B8
ΔE00 4.86
Blue Grey
#758DA3
ΔE00 5.10
Greyish Blue
#5E819D
ΔE00 5.40
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#648EB4 #B48A64
analogous
#64B4B2 #648EB4 #6466B4
triadic
#648EB4 #B4648E #8EB464
tetradic
#648EB4 #B264B4 #B48A64 #66B464
square
#648EB4 #B264B4 #B48A64 #66B464
split-complementary
#648EB4 #B46466 #B4B264
monochromatic
#33506A #476F93 #648EB4 #8DACC8 #B6CADC
Accessibility & contrast
On white
3.46
#648EB4 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.07
#648EB4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #648EB4
6.07:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##648EB4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##648EB4 | 1.00 | 3.46 | 6.07 | 6.07 |
| #FFFFFF | 3.46 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.07 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.07 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7F8EB6
Deuteranopia (green-blind)
#7486B3
Tritanopia (blue-blind)
#44979B
Achromatopsia (no color)
#8A8A8A
Design tokens & code
CSS
--color: #648eb4; /* rgb */ color: rgb(100, 142, 180); /* oklch */ color: oklch(63.1% 0.074 246.6);
Tailwind
colors: {
custom: {
50: '#94afca',
500: '#648eb4',
950: '#000000',
},
}SCSS
$custom: #648eb4; $custom-light: #94afca; $custom-dark: #000000;
JSON
{
"hex": "#648eb4",
"rgb": {
"r": 100,
"g": 142,
"b": 180
},
"hsl": {
"h": 208.5,
"s": 34.783,
"l": 54.902
},
"oklch": {
"l": 0.63094,
"c": 0.07388,
"h": 246.6
},
"luminance": 0.25351
}Semantic roles & 50–950 ramp
primary
#648EB4
secondary
#CBB9A9
accent
#915DCB
background
#F9FAFC
surface
#F2F4F8
border
#CCCED1
text
#0D1013
muted
#7E7F82