#4B81F2
Closest named color: Soft Blue (#6488EA). oklch(62.4% 0.179 263), rgb(75, 129, 242).
Aa
Black text reads best on this color (5.72:1).
About this color
#4B81F2 is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.179 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.036 away. Black text reads best on it, at 5.72:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.72:1 |
| White text | 3.67:1 |
Values
| HEX | #4B81F2 |
| RGB | rgb(75, 129, 242) |
| HSL | hsl(221, 87%, 62%) |
| OKLCH | oklch(62.4% 0.179 263) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4B81F2 | 3.67:1 | AA large text | Lc -69.4 | Content text, not long reading |
| Black text on #4B81F2 | 5.72:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #4B81F2 text on white | 3.67:1 | AA large text | Lc 63.9 | Content text, not long reading |
| #4B81F2 text on black | 5.72:1 | AA | Lc -37.8 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAFA
oklch(88.5% 0.048 262)
-
Step 300
300
#A3C1FA
oklch(80.9% 0.087 263)
-
Step 400
400
#719EF8
oklch(70.6% 0.141 263.1)
-
Step 500
500 (this color)
#4B81F2
oklch(62.4% 0.179 263)
-
Step 600
600
#3169E3
oklch(55.5% 0.195 263)
-
Step 700
700
#2557C5
oklch(49.1% 0.18 263)
-
Step 800
800
#1F48A0
oklch(42.8% 0.15 262.9)
-
Step 900
900
#1E3D7F
oklch(37.7% 0.118 263)
-
Step 950
950
#12244A
oklch(26.9% 0.075 263.2)
#4B81F2 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #458EF6 | 0.033 |
| Deuteranopia (no green cones) | #1D7EF0 | 0.033 |
| Tritanopia (no blue cones) | #009BAE | 0.143 |
| Achromatopsia (no color) | #858585 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B81F2
#4B81F2
oklch(62.4% 0.179 263)
- #AD7F00
#AD7F00
oklch(62.5% 0.129 83)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4B81F2, closest first.
No curated palette has a color within ΔE 0.04 of #4B81F2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.036
- Cornflower #6A79F7 ΔE 0.038
- Clear Blue #247AFD ΔE 0.039
- Dark Sky Blue #448EE4 ΔE 0.043
- Dodger Blue #1E90FF ΔE 0.043
- Chefchaouen Blue #4895EF ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.063
- Royal Blue #4169E1 ΔE 0.066
Use #4B81F2 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.