#4381FE
Closest named color: Clear Blue (#247AFD). oklch(62.9% 0.197 262.4), rgb(67, 129, 254).
Aa
Black text reads best on this color (5.80:1).
About this color
#4381FE is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.197 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.030 away. Black text reads best on it, at 5.80:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.80:1 |
| White text | 3.61:1 |
Values
| HEX | #4381FE |
| RGB | rgb(67, 129, 254) |
| HSL | hsl(220, 99%, 63%) |
| OKLCH | oklch(62.9% 0.197 262.4) |
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 #4381FE | 3.61:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #4381FE | 5.80:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #4381FE text on white | 3.61:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #4381FE text on black | 5.80:1 | AA | Lc -38.4 | 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
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C6DAFD
oklch(88.5% 0.053 261.7)
-
Step 300
300
#9FC1FF
oklch(80.9% 0.096 262.2)
-
Step 400
400
#6C9EFF
oklch(70.7% 0.152 262.5)
-
Step 500
500 (this color)
#4381FE
oklch(62.9% 0.197 262.4)
-
Step 600
600
#2567EE
oklch(55.6% 0.214 262.3)
-
Step 700
700
#1954CF
oklch(49% 0.2 262.5)
-
Step 800
800
#1746A7
oklch(42.7% 0.164 262.4)
-
Step 900
900
#193C85
oklch(37.7% 0.129 262.6)
-
Step 950
950
#0F244E
oklch(27% 0.082 262.4)
#4381FE 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 | 0.037 |
| Deuteranopia (no green cones) | #007EFB | 0.033 |
| Tritanopia (no blue cones) | #009FB3 | 0.156 |
| Achromatopsia (no color) | #878787 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4381FE
#4381FE
oklch(62.9% 0.197 262.4)
- #AF8000
#AF8000
oklch(62.9% 0.13 82.6)
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 #4381FE, closest first.
No curated palette has a color within ΔE 0.04 of #4381FE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.030
- Dodger Blue #1E90FF ΔE 0.039
- Cornflower #6A79F7 ΔE 0.042
- Soft Blue #6488EA ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.067
- Royal Blue #4169E1 ΔE 0.071
Use #4381FE 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.