#5D51E5
Closest named color: Warm Blue (#4B57DB). oklch(53.7% 0.215 279.9), rgb(93, 81, 229).
Aa
White text reads best on this color (5.56:1).
About this color
#5D51E5 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.215 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.030 away. White text reads best on it, at 5.56:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.215) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #5D51E5 |
| RGB | rgb(93, 81, 229) |
| HSL | hsl(245, 74%, 61%) |
| OKLCH | oklch(53.7% 0.215 279.9) |
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 #5D51E5 | 5.56:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #5D51E5 | 3.77:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #5D51E5 text on white | 5.56:1 | AA | Lc 77.2 | Fine for body text |
| #5D51E5 text on black | 3.77:1 | AA large text | Lc -24.5 | 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 600.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E8FD
oklch(93.6% 0.028 281.5)
-
Step 200
200
#D1D6FD
oklch(88.5% 0.054 279.5)
-
Step 300
300
#B4BAFF
oklch(80.9% 0.098 280.1)
-
Step 400
400
#8F93FE
oklch(70.7% 0.155 280)
-
Step 500
500
#7674FC
oklch(63.1% 0.197 279.8)
-
Step 600
600 (this color)
#5D51E5
oklch(53.7% 0.215 279.9)
-
Step 700
700
#5246CD
oklch(49.1% 0.2 280.1)
-
Step 800
800
#423BA6
oklch(42.7% 0.166 279.7)
-
Step 900
900
#373483
oklch(37.6% 0.129 279.9)
-
Step 950
950
#201F4D
oklch(26.9% 0.083 280.3)
#5D51E5 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) | #006EEA | 0.085 |
| Deuteranopia (no green cones) | #0062E2 | 0.076 |
| Tritanopia (no blue cones) | #007794 | 0.182 |
| Achromatopsia (no color) | #686868 | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D51E5
#5D51E5
oklch(53.7% 0.215 279.9)
- #7D6E00
#7D6E00
oklch(53.6% 0.111 99.9)
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 #5D51E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.030
- Neon Blue #4361EE ΔE 0.045
- Dark Periwinkle #665FD1 ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.048
- Light Indigo #6D5ACF ΔE 0.048
- Purpley Blue #5F34E7 ΔE 0.050
- Burple #6832E3 ΔE 0.054
- Iris #6258C4 ΔE 0.055
Use #5D51E5 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.