#4B72BB#4B72BB
#4B72BB is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.8% C 0.122 H 261.9°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).
Color values
| HEX | #4B72BB |
|---|---|
| RGB | rgb(75, 114, 187) |
| HSL | hsl(219, 45%, 51%) |
| HSV | hsv(219, 60%, 73%) |
| CMYK | cmyk(59.9%, 39%, 0%, 26.7%) |
| CIE-LAB | lab(48.41, 8.91, -42.60) |
| CIE-LCH | lch(48.41, 43.52, 281.81°) |
| OKLab | oklab(55.8% -0.0171 -0.1209) |
| OKLCH | oklch(55.8% 0.122 261.9) |
| XYZ | xyz(17.8855, 17.1168, 49.3654) |
| Luminance | 0.1712 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
French Blue
#436BAD
ΔE00 3.15
Cornflower Blue
#5170D7
ΔE00 4.11
Medium Blue
#2C6FBB
ΔE00 4.18
Windows Blue
#3778BF
ΔE00 4.46
Flat Blue
#3C73A8
ΔE00 4.59
Dull Blue
#49759C
ΔE00 5.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4B72BB #BB944B
analogous
#4BAABB #4B72BB #5C4BBB
triadic
#4B72BB #BB4B72 #72BB4B
tetradic
#4B72BB #BB4BAA #BB944B #4BBB5C
square
#4B72BB #BB4BAA #BB944B #4BBB5C
split-complementary
#4B72BB #BB5C4B #AABB4B
monochromatic
#263C65 #375792 #4B72BB #7795CC #A4B8DD
Accessibility & contrast
On white
4.75
#4B72BB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.42
#4B72BB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4B72BB
4.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4B72BB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4B72BB | 1.00 | 4.75 | 4.42 | 4.75 |
| #FFFFFF | 4.75 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.42 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.75 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5379BE
Deuteranopia (green-blind)
#446EB9
Tritanopia (blue-blind)
#00828D
Achromatopsia (no color)
#737373
Design tokens & code
CSS
--color: #4b72bb; /* rgb */ color: rgb(75, 114, 187); /* oklch */ color: oklch(55.8% 0.122 261.9);
Tailwind
colors: {
custom: {
50: '#879ad0',
500: '#4b72bb',
950: '#000000',
},
}SCSS
$custom: #4b72bb; $custom-light: #879ad0; $custom-dark: #000000;
JSON
{
"hex": "#4b72bb",
"rgb": {
"r": 75,
"g": 114,
"b": 187
},
"hsl": {
"h": 219.107,
"s": 45.161,
"l": 51.373
},
"oklch": {
"l": 0.55802,
"c": 0.12215,
"h": 261.9
},
"luminance": 0.17118
}Semantic roles & 50–950 ramp
primary
#4B72BB
secondary
#CAB898
accent
#A853D5
background
#F8F9FC
surface
#F0F2F9
border
#CBCCD2
text
#0C0E14
muted
#7D7E82