#4B88F1#4B88F1
#4B88F1 is a light, vivid blue. Relative luminance 0.255; OKLCH L 63.8% C 0.170 H 260.5°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).
Color values
| HEX | #4B88F1 |
|---|---|
| RGB | rgb(75, 136, 241) |
| HSL | hsl(218, 86%, 62%) |
| HSV | hsv(218, 69%, 95%) |
| CMYK | cmyk(68.9%, 43.6%, 0%, 5.5%) |
| CIE-LAB | lab(57.51, 14.14, -58.60) |
| CIE-LCH | lch(57.51, 60.28, 283.57°) |
| OKLab | oklab(63.82% -0.0281 -0.1676) |
| OKLCH | oklch(63.82% 0.17 260.5) |
| XYZ | xyz(27.5773, 25.4522, 86.6614) |
| Luminance | 0.2545 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dodger Blue
#3E82FC
ΔE00 2.12
Dark Sky Blue
#448EE4
ΔE00 3.53
Soft Blue
#6488EA
ΔE00 3.53
Azure
#007FFF
ΔE00 3.78
Cornflowerblue
#6495ED
ΔE00 4.25
Clear Blue
#247AFD
ΔE00 4.65
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4B88F1 #F1B44B
analogous
#4BDBF1 #4B88F1 #614BF1
triadic
#4B88F1 #F14B88 #88F14B
tetradic
#4B88F1 #F14BDB #F1B44B #4BF161
square
#4B88F1 #F14BDB #F1B44B #4BF161
split-complementary
#4B88F1 #F1614B #DBF14B
monochromatic
#0E4BB4 #1263EC #4B88F1 #84AEF5 #BDD3FA
Accessibility & contrast
On white
3.45
#4B88F1 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.09
#4B88F1 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4B88F1
6.09:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4B88F1 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4B88F1 | 1.00 | 3.45 | 6.09 | 6.09 |
| #FFFFFF | 3.45 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.09 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.09 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5492F5
Deuteranopia (green-blind)
#3683EF
Tritanopia (blue-blind)
#00A0B1
Achromatopsia (no color)
#8A8A8A
Design tokens & code
CSS
--color: #4b88f1; /* rgb */ color: rgb(75, 136, 241); /* oklch */ color: oklch(63.8% 0.170 260.5);
Tailwind
colors: {
custom: {
50: '#8faaf6',
500: '#4b88f1',
950: '#000000',
},
}SCSS
$custom: #4b88f1; $custom-light: #8faaf6; $custom-dark: #000000;
JSON
{
"hex": "#4b88f1",
"rgb": {
"r": 75,
"g": 136,
"b": 241
},
"hsl": {
"h": 217.952,
"s": 85.567,
"l": 61.961
},
"oklch": {
"l": 0.63818,
"c": 0.16993,
"h": 260.5
},
"luminance": 0.25455
}Semantic roles & 50–950 ramp
primary
#4B88F1
secondary
#EBD4AD
accent
#9003E2
background
#F9FAFF
surface
#F2F4FF
border
#CCCED7
text
#0E0F17
muted
#7E7F85