#4075CB#4075CB
#4075CB is a mid, vivid blue. Relative luminance 0.181; OKLCH L 56.9% C 0.145 H 259.6°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).
Color values
| HEX | #4075CB |
|---|---|
| RGB | rgb(64, 117, 203) |
| HSL | hsl(217, 57%, 52%) |
| HSV | hsv(217, 68%, 80%) |
| CMYK | cmyk(68.5%, 42.4%, 0%, 20.4%) |
| CIE-LAB | lab(49.64, 10.69, -49.85) |
| CIE-LCH | lch(49.64, 50.98, 282.10°) |
| OKLab | oklab(56.91% -0.0261 -0.1423) |
| OKLCH | oklch(56.91% 0.145 259.6) |
| XYZ | xyz(19.2513, 18.1224, 58.9717) |
| Luminance | 0.1812 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Windows Blue
#3778BF
ΔE00 3.02
Medium Blue
#2C6FBB
ΔE00 3.91
Cerulean Blue
#056EEE
ΔE00 4.09
Cornflower Blue
#5170D7
ΔE00 4.39
Deep Sky Blue
#0D75F8
ΔE00 4.47
Bluish
#2976BB
ΔE00 4.54
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4075CB #CB9640
analogous
#40BBCB #4075CB #5040CB
triadic
#4075CB #CB4075 #75CB40
tetradic
#4075CB #CB40BB #CB9640 #40CB50
square
#4075CB #CB40BB #CB9640 #40CB50
split-complementary
#4075CB #CB5040 #BBCB40
monochromatic
#1F3E72 #2C59A2 #4075CB #7098D8 #A0BBE5
Accessibility & contrast
On white
4.54
#4075CB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.62
#4075CB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4075CB
4.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4075CB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4075CB | 1.00 | 4.54 | 4.62 | 4.62 |
| #FFFFFF | 4.54 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.62 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.62 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4C7DCE
Deuteranopia (green-blind)
#3570C9
Tritanopia (blue-blind)
#008996
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #4075cb; /* rgb */ color: rgb(64, 117, 203); /* oklch */ color: oklch(56.9% 0.145 259.6);
Tailwind
colors: {
custom: {
50: '#849cdb',
500: '#4075cb',
950: '#000000',
},
}SCSS
$custom: #4075cb; $custom-light: #849cdb; $custom-dark: #000000;
JSON
{
"hex": "#4075cb",
"rgb": {
"r": 64,
"g": 117,
"b": 203
},
"hsl": {
"h": 217.122,
"s": 57.202,
"l": 52.353
},
"oklch": {
"l": 0.56913,
"c": 0.14471,
"h": 259.6
},
"luminance": 0.18124
}Semantic roles & 50–950 ramp
primary
#4075CB
secondary
#D2BB95
accent
#A647E0
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83