#4284FA
Closest named color: Dodger Blue (#1E90FF). oklch(63.2% 0.189 261), rgb(66, 132, 250).
Aa
Black text reads best on this color (5.91:1).
About this color
#4284FA is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.189 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.032 away. Black text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 5.91:1 |
| White text | 3.55:1 |
Values
| HEX | #4284FA |
| RGB | rgb(66, 132, 250) |
| HSL | hsl(218, 95%, 62%) |
| OKLCH | oklch(63.2% 0.189 261) |
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 #4284FA | 3.55:1 | AA large text | Lc -68.1 | Content text, not long reading |
| Black text on #4284FA | 5.91:1 | AA | Lc 41.4 | Non-text elements, placeholder text |
| #4284FA text on white | 3.55:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #4284FA text on black | 5.91:1 | AA | Lc -39.0 | 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
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFC
oklch(88.4% 0.052 261.1)
-
Step 300
300
#9FC2FD
oklch(81% 0.092 260.7)
-
Step 400
400
#6A9FFC
oklch(70.7% 0.148 261)
-
Step 500
500 (this color)
#4284FA
oklch(63.2% 0.189 261)
-
Step 600
600
#2169E9
oklch(55.5% 0.206 261.1)
-
Step 700
700
#1457CA
oklch(49.1% 0.19 260.9)
-
Step 800
800
#1448A4
oklch(42.8% 0.158 261)
-
Step 900
900
#173D82
oklch(37.6% 0.124 261.1)
-
Step 950
950
#0F254C
oklch(27.1% 0.078 260.9)
#4284FA 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) | #4391FE | 0.033 |
| Deuteranopia (no green cones) | #0280F8 | 0.032 |
| Tritanopia (no blue cones) | #00A0B3 | 0.148 |
| Achromatopsia (no color) | #888888 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4284FA
#4284FA
oklch(63.2% 0.189 261)
- #B28000
#B28000
oklch(63.3% 0.131 81)
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 #4284FA, closest first.
No curated palette has a color within ΔE 0.04 of #4284FA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.032
- Clear Blue #247AFD ΔE 0.035
- Soft Blue #6488EA ΔE 0.043
- Cornflower #6A79F7 ΔE 0.045
- Dark Sky Blue #448EE4 ΔE 0.046
- Chefchaouen Blue #4895EF ΔE 0.051
- Cornflower Blue #6495ED ΔE 0.064
- Cerulean Blue #056EEE ΔE 0.071
Use #4284FA 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.