#4B81FF
Closest named color: Clear Blue (#247AFD). oklch(63.3% 0.196 264.1), rgb(75, 129, 255).
Aa
Black text reads best on this color (5.88:1).
About this color
#4B81FF is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.196 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.036 away. Black text reads best on it, at 5.88:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.88:1 |
| White text | 3.56:1 |
Values
| HEX | #4B81FF |
| RGB | rgb(75, 129, 255) |
| HSL | hsl(222, 100%, 65%) |
| OKLCH | oklch(63.3% 0.196 264.1) |
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 #4B81FF | 3.56:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #4B81FF | 5.88:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #4B81FF text on white | 3.56:1 | AA large text | Lc 62.9 | Content text, not long reading |
| #4B81FF text on black | 5.88:1 | AA | Lc -38.8 | 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
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C7DAFD
oklch(88.5% 0.053 262.7)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#709DFF
oklch(70.7% 0.152 264.2)
-
Step 500
500 (this color)
#4B81FF
oklch(63.3% 0.196 264.1)
-
Step 600
600
#2F65EE
oklch(55.5% 0.215 264.2)
-
Step 700
700
#2353CF
oklch(49.1% 0.199 264.1)
-
Step 800
800
#1E45A7
oklch(42.7% 0.164 264.1)
-
Step 900
900
#1D3B84
oklch(37.6% 0.128 264.3)
-
Step 950
950
#11244D
oklch(27.1% 0.08 263.3)
#4B81FF 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) | #3690FF | 0.038 |
| Deuteranopia (no green cones) | #0080FC | 0.037 |
| Tritanopia (no blue cones) | #009FB4 | 0.157 |
| Achromatopsia (no color) | #878787 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B81FF
#4B81FF
oklch(63.3% 0.196 264.1)
- #AF8200
#AF8200
oklch(63.4% 0.13 84.1)
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 #4B81FF, closest first.
No curated palette has a color within ΔE 0.04 of #4B81FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.036
- Cornflower #6A79F7 ΔE 0.037
- Dodger Blue #1E90FF ΔE 0.042
- Soft Blue #6488EA ΔE 0.047
- Dark Sky Blue #448EE4 ΔE 0.057
- Chefchaouen Blue #4895EF ΔE 0.060
- Cornflower Blue #6495ED ΔE 0.069
- Cerulean Blue #056EEE ΔE 0.072
Use #4B81FF 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.