#4A78DB#4A78DB
#4A78DB is a mid, vivid blue. Relative luminance 0.200; OKLCH L 59.0% C 0.159 H 263.5°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).
Color values
| HEX | #4A78DB |
|---|---|
| RGB | rgb(74, 120, 219) |
| HSL | hsl(221, 67%, 57%) |
| HSV | hsv(221, 66%, 86%) |
| CMYK | cmyk(66.2%, 45.2%, 0%, 14.1%) |
| CIE-LAB | lab(51.84, 16.08, -55.39) |
| CIE-LCH | lch(51.84, 57.68, 286.19°) |
| OKLab | oklab(59.02% -0.018 -0.1584) |
| OKLCH | oklch(59.02% 0.159 263.5) |
| XYZ | xyz(22.3222, 20.0011, 69.6883) |
| Luminance | 0.2000 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 3.42
Deep Sky Blue
#0D75F8
ΔE00 3.73
Lightish Blue
#3D7AFD
ΔE00 3.74
Clear Blue
#247AFD
ΔE00 3.90
Cerulean Blue
#056EEE
ΔE00 4.52
Dodger Blue
#3E82FC
ΔE00 5.01
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4A78DB #DBAD4A
analogous
#4AC0DB #4A78DB #654ADB
triadic
#4A78DB #DB4A78 #78DB4A
tetradic
#4A78DB #DB4AC0 #DBAD4A #4ADB65
square
#4A78DB #DB4AC0 #DBAD4A #4ADB65
split-complementary
#4A78DB #DB654A #C0DB4A
monochromatic
#1C408E #2658C1 #4A78DB #7D9EE5 #B0C4EF
Accessibility & contrast
On white
4.20
#4A78DB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.00
#4A78DB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4A78DB
5.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4A78DB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4A78DB | 1.00 | 4.20 | 5.00 | 5.00 |
| #FFFFFF | 4.20 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.00 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.00 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4783DF
Deuteranopia (green-blind)
#2C75D9
Tritanopia (blue-blind)
#008F9F
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #4a78db; /* rgb */ color: rgb(74, 120, 219); /* oklch */ color: oklch(59.0% 0.159 263.5);
Tailwind
colors: {
custom: {
50: '#8b9ee7',
500: '#4a78db',
950: '#000000',
},
}SCSS
$custom: #4a78db; $custom-light: #8b9ee7; $custom-dark: #000000;
JSON
{
"hex": "#4a78db",
"rgb": {
"r": 74,
"g": 120,
"b": 219
},
"hsl": {
"h": 220.966,
"s": 66.82,
"l": 57.451
},
"oklch": {
"l": 0.59024,
"c": 0.15944,
"h": 263.5
},
"luminance": 0.20003
}Semantic roles & 50–950 ramp
primary
#4A78DB
secondary
#DECBA3
accent
#B33EEA
background
#F9F9FE
surface
#F1F2FC
border
#CBCCD5
text
#0D0E16
muted
#7E7E84