#3D3AAD
Closest named color: Sapphire (#2138AB). oklch(42.8% 0.177 277), rgb(61, 58, 173).
Aa
White text reads best on this color (8.72:1).
About this color
#3D3AAD is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.177 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.037 away. White text reads best on it, at 8.72:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #3D3AAD |
| RGB | rgb(61, 58, 173) |
| HSL | hsl(242, 50%, 45%) |
| OKLCH | oklch(42.8% 0.177 277) |
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 #3D3AAD | 8.72:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #3D3AAD | 2.40:1 | Fails | Lc 14.7 | Not readable |
| #3D3AAD text on white | 8.72:1 | AAA | Lc 89.3 | Fine for body text |
| #3D3AAD text on black | 2.40:1 | Fails | Lc -12.9 | Not readable |
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 800.
-
Step 50
50
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E9FE
oklch(93.7% 0.029 275.2)
-
Step 200
200
#CFD7FF
oklch(88.6% 0.056 276.3)
-
Step 300
300
#B0BBFF
oklch(80.8% 0.097 276.9)
-
Step 400
400
#8995FF
oklch(70.7% 0.154 276.8)
-
Step 500
500
#6F76FF
oklch(63.2% 0.2 276.8)
-
Step 600
600
#5A56F5
oklch(55.6% 0.23 277)
-
Step 700
700
#4B44D6
oklch(49.1% 0.215 277.1)
-
Step 800
800 (this color)
#3D3AAD
oklch(42.8% 0.177 277)
-
Step 900
900
#333489
oklch(37.8% 0.138 277)
-
Step 950
950
#1D1F50
oklch(26.9% 0.088 277)
#3D3AAD 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) | #0050B1 | 0.062 |
| Deuteranopia (no green cones) | #0046AB | 0.052 |
| Tritanopia (no blue cones) | #00586E | 0.147 |
| Achromatopsia (no color) | #4B4B4B | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3AAD
#3D3AAD
oklch(42.8% 0.177 277)
- #5D4F00
#5D4F00
oklch(42.9% 0.088 97.4)
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 #3D3AAD, closest first.
No curated palette has a color within ΔE 0.04 of #3D3AAD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.037
- Blueberry #464196 ΔE 0.044
- Majorelle Blue #3F37C9 ΔE 0.045
- Blue Blue #2242C7 ΔE 0.053
- Blue With A Hint Of Purple #533CC6 ΔE 0.053
- Indigo Blue #3A18B1 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.059
- Blurple #5539CC ΔE 0.062
Use #3D3AAD 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.