#6599CF#6599CF
#6599CF is a light, moderate cyan. Relative luminance 0.301; OKLCH L 66.8% C 0.098 H 250.4°. Best body text is #000000 at 7.01:1 contrast (WCAG AA passes).
Color values
| HEX | #6599CF |
|---|---|
| RGB | rgb(101, 153, 207) |
| HSL | hsl(211, 52%, 60%) |
| HSV | hsv(211, 51%, 81%) |
| CMYK | cmyk(51.2%, 26.1%, 0%, 18.8%) |
| CIE-LAB | lab(61.70, -2.15, -33.00) |
| CIE-LCH | lch(61.70, 33.07, 266.27°) |
| OKLab | oklab(66.85% -0.033 -0.0924) |
| OKLCH | oklch(66.85% 0.098 250.4) |
| XYZ | xyz(28.0166, 30.0520, 63.3436) |
| Luminance | 0.3005 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cornflowerblue
#6495ED
ΔE00 3.92
Dark Sky Blue
#448EE4
ΔE00 4.52
Faded Blue
#658CBB
ΔE00 4.78
Dodgerblue
#1E90FF
ΔE00 5.60
Azure (survey)
#069AF3
ΔE00 6.15
Soft Blue
#6488EA
ΔE00 6.89
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#6599CF #CF9B65
analogous
#65CECF #6599CF #6665CF
triadic
#6599CF #CF6599 #99CF65
tetradic
#6599CF #CF65CE #CF9B65 #65CF66
square
#6599CF #CF65CE #CF9B65 #65CF66
split-complementary
#6599CF #CF6665 #CECF65
monochromatic
#2C5C8D #3B7ABC #6599CF #94B8DE #C2D7EC
Accessibility & contrast
On white
3.00
#6599CF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
7.01
#6599CF on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #6599CF
7.01:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##6599CF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##6599CF | 1.00 | 3.00 | 7.01 | 7.01 |
| #FFFFFF | 3.00 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.01 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.01 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#839BD1
Deuteranopia (green-blind)
#7690CE
Tritanopia (blue-blind)
#2EA5AC
Achromatopsia (no color)
#959595
Design tokens & code
CSS
--color: #6599cf; /* rgb */ color: rgb(101, 153, 207); /* oklch */ color: oklch(66.8% 0.098 250.4);
Tailwind
colors: {
custom: {
50: '#97b6de',
500: '#6599cf',
950: '#000000',
},
}SCSS
$custom: #6599cf; $custom-light: #97b6de; $custom-dark: #000000;
JSON
{
"hex": "#6599cf",
"rgb": {
"r": 101,
"g": 153,
"b": 207
},
"hsl": {
"h": 210.566,
"s": 52.475,
"l": 60.392
},
"oklch": {
"l": 0.66845,
"c": 0.09806,
"h": 250.4
},
"luminance": 0.30054
}Semantic roles & 50–950 ramp
primary
#6599CF
secondary
#DCC8B4
accent
#7426C0
background
#F9FBFD
surface
#F2F6FB
border
#CCD0D4
text
#0E1115
muted
#7E8083