#3A77DD#3A77DD
#3A77DD is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.3% C 0.168 H 260.1°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).
Color values
| HEX | #3A77DD |
|---|---|
| RGB | rgb(58, 119, 221) |
| HSL | hsl(218, 71%, 55%) |
| HSV | hsv(218, 74%, 87%) |
| CMYK | cmyk(73.8%, 46.2%, 0%, 13.3%) |
| CIE-LAB | lab(51.05, 15.12, -57.82) |
| CIE-LCH | lch(51.05, 59.77, 284.65°) |
| OKLab | oklab(58.28% -0.029 -0.1658) |
| OKLCH | oklch(58.28% 0.168 260.1) |
| XYZ | xyz(21.3882, 19.3113, 70.9928) |
| Luminance | 0.1931 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Deep Sky Blue
#0D75F8
ΔE00 2.69
Clear Blue
#247AFD
ΔE00 3.45
Cerulean Blue
#056EEE
ΔE00 3.45
Windows Blue
#3778BF
ΔE00 4.03
Lightish Blue
#3D7AFD
ΔE00 4.15
Cornflower Blue
#5170D7
ΔE00 4.53
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3A77DD #DDA03A
analogous
#3AC9DD #3A77DD #4F3ADD
triadic
#3A77DD #DD3A77 #77DD3A
tetradic
#3A77DD #DD3AC9 #DDA03A #3ADD4F
square
#3A77DD #DD3AC9 #DDA03A #3ADD4F
split-complementary
#3A77DD #DD4F3A #C9DD3A
monochromatic
#174086 #205ABA #3A77DD #6E9BE6 #A2BFEF
Accessibility & contrast
On white
4.32
#3A77DD on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.86
#3A77DD on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3A77DD
4.86:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3A77DD | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3A77DD | 1.00 | 4.32 | 4.86 | 4.86 |
| #FFFFFF | 4.32 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.86 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.86 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4182E1
Deuteranopia (green-blind)
#1973DB
Tritanopia (blue-blind)
#008F9F
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #3a77dd; /* rgb */ color: rgb(58, 119, 221); /* oklch */ color: oklch(58.3% 0.168 260.1);
Tailwind
colors: {
custom: {
50: '#859de8',
500: '#3a77dd',
950: '#000000',
},
}SCSS
$custom: #3a77dd; $custom-light: #859de8; $custom-dark: #000000;
JSON
{
"hex": "#3a77dd",
"rgb": {
"r": 58,
"g": 119,
"b": 221
},
"hsl": {
"h": 217.546,
"s": 70.563,
"l": 54.706
},
"oklch": {
"l": 0.5828,
"c": 0.16836,
"h": 260.1
},
"luminance": 0.19314
}Semantic roles & 50–950 ramp
primary
#3A77DD
secondary
#DCC297
accent
#AA3AED
background
#F8F9FE
surface
#F0F2FD
border
#CBCCD5
text
#0D0E16
muted
#7D7E84