#6399EB#6399EB
#6399EB is a light, vivid blue. Relative luminance 0.314; OKLCH L 68.2% C 0.135 H 258.5°. Best body text is #000000 at 7.29:1 contrast (WCAG AA passes).
Color values
| HEX | #6399EB |
|---|---|
| RGB | rgb(99, 153, 235) |
| HSL | hsl(216, 77%, 65%) |
| HSV | hsv(216, 58%, 92%) |
| CMYK | cmyk(57.9%, 34.9%, 0%, 7.8%) |
| CIE-LAB | lab(62.87, 6.16, -46.71) |
| CIE-LCH | lch(62.87, 47.11, 277.51°) |
| OKLab | oklab(68.15% -0.0269 -0.1322) |
| OKLCH | oklch(68.15% 0.135 258.5) |
| XYZ | xyz(31.5270, 31.4306, 82.9865) |
| Luminance | 0.3143 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflowerblue
#6495ED
ΔE00 1.54
Dark Sky Blue
#448EE4
ΔE00 4.60
Dodgerblue
#1E90FF
ΔE00 5.07
Soft Blue
#6488EA
ΔE00 5.91
Faded Blue
#658CBB
ΔE00 6.38
Dodger Blue
#3E82FC
ΔE00 7.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#6399EB #EBB563
analogous
#63DDEB #6399EB #7163EB
triadic
#6399EB #EB6399 #99EB63
tetradic
#6399EB #EB63DD #EBB563 #63EB71
square
#6399EB #EB63DD #EBB563 #63EB71
split-complementary
#6399EB #EB7163 #DDEB63
monochromatic
#1859BC #2D76E4 #6399EB #99BCF2 #CFE0F9
Accessibility & contrast
On white
2.88
#6399EB on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.29
#6399EB on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #6399EB
7.29:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##6399EB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##6399EB | 1.00 | 2.88 | 7.29 | 7.29 |
| #FFFFFF | 2.88 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.29 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.29 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#779FEE
Deuteranopia (green-blind)
#6592E9
Tritanopia (blue-blind)
#00ABB7
Achromatopsia (no color)
#989898
Design tokens & code
CSS
--color: #6399eb; /* rgb */ color: rgb(99, 153, 235); /* oklch */ color: oklch(68.2% 0.135 258.5);
Tailwind
colors: {
custom: {
50: '#99b6f2',
500: '#6399eb',
950: '#000000',
},
}SCSS
$custom: #6399eb; $custom-light: #99b6f2; $custom-dark: #000000;
JSON
{
"hex": "#6399eb",
"rgb": {
"r": 99,
"g": 153,
"b": 235
},
"hsl": {
"h": 216.176,
"s": 77.273,
"l": 65.49
},
"oklch": {
"l": 0.6815,
"c": 0.13487,
"h": 258.5
},
"luminance": 0.31433
}Semantic roles & 50–950 ramp
primary
#6399EB
secondary
#ECDABE
accent
#880CDA
background
#F9FBFE
surface
#F2F6FD
border
#CCD0D5
text
#0F1117
muted
#7E8085