#4E21FA
Closest named color: Light Royal Blue (#3A2EFE). oklch(49.2% 0.282 277.6), rgb(78, 33, 250).
Aa
White text reads best on this color (7.18:1).
About this color
#4E21FA is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.282 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Light Royal Blue (#3A2EFE), ΔE 0.030 away. White text reads best on it, at 7.18:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.282) |
| Temperature | cool |
| Nearest name | Light Royal Blue (#3A2EFE) |
| Black text | 2.92:1 |
| White text | 7.18:1 |
Values
| HEX | #4E21FA |
| RGB | rgb(78, 33, 250) |
| HSL | hsl(252, 96%, 55%) |
| OKLCH | oklch(49.2% 0.282 277.6) |
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 #4E21FA | 7.18:1 | AAA | Lc -88.1 | Fine for body text |
| Black text on #4E21FA | 2.92:1 | Fails | Lc 21.0 | Dividers and decoration only |
| #4E21FA text on white | 7.18:1 | AAA | Lc 83.1 | Fine for body text |
| #4E21FA text on black | 2.92:1 | Fails | Lc -18.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E8FF
oklch(93.5% 0.031 277.9)
-
Step 200
200
#CFD6FF
oklch(88.4% 0.057 277.5)
-
Step 300
300
#B1BBFF
oklch(80.9% 0.097 277.5)
-
Step 400
400
#8B95FF
oklch(70.8% 0.154 277.6)
-
Step 500
500
#7175FF
oklch(63.1% 0.201 277.7)
-
Step 600
600
#5B4FFF
oklch(55.5% 0.249 277.6)
-
Step 700
700 (this color)
#4E21FA
oklch(49.2% 0.282 277.6)
-
Step 800
800
#3F22C9
oklch(42.7% 0.233 277.8)
-
Step 900
900
#33279E
oklch(37.7% 0.182 277.7)
-
Step 950
950
#1D195D
oklch(27% 0.116 277.8)
#4E21FA 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) | #005FFF | 0.100 |
| Deuteranopia (no green cones) | #004EF7 | 0.076 |
| Tritanopia (no blue cones) | #006C95 | 0.220 |
| Achromatopsia (no color) | #575757 | 0.284 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E21FA
#4E21FA
oklch(49.2% 0.282 277.6)
- #716000
#716000
oklch(49.1% 0.101 97)
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 #4E21FA, closest first.
No curated palette has a color within ΔE 0.04 of #4E21FA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Royal Blue #3A2EFE ΔE 0.030
- Blue Purple #5A06EF ΔE 0.033
- Purpley Blue #5F34E7 ΔE 0.048
- Purply Blue #661AEE ΔE 0.048
- Vivid Blue #152EFF ΔE 0.062
- Burple #6832E3 ΔE 0.063
- Vibrant Blue #0339F8 ΔE 0.066
- Purple Blue #5D21D0 ΔE 0.074
Use #4E21FA 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.