#3D3F97
Closest named color: Blueberry (#464196). oklch(41.8% 0.141 277.4), rgb(61, 63, 151).
Aa
White text reads best on this color (8.91:1).
About this color
#3D3F97 is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.141 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.016 away. White text reads best on it, at 8.91:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.35:1 |
| White text | 8.91:1 |
Values
| HEX | #3D3F97 |
| RGB | rgb(61, 63, 151) |
| HSL | hsl(239, 42%, 42%) |
| OKLCH | oklch(41.8% 0.141 277.4) |
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 #3D3F97 | 8.91:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #3D3F97 | 2.35:1 | Fails | Lc 13.9 | Not readable |
| #3D3F97 text on white | 8.91:1 | AAA | Lc 90.1 | Preferred for body text |
| #3D3F97 text on black | 2.35:1 | Fails | Lc -12.2 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D1D7F8
oklch(88.5% 0.046 277.3)
-
Step 300
300
#B3BCF6
oklch(80.9% 0.083 277.5)
-
Step 400
400
#8D97F2
oklch(70.6% 0.133 277.7)
-
Step 500
500
#737BED
oklch(63.2% 0.169 277.4)
-
Step 600
600
#5D61DB
oklch(55.6% 0.183 277.2)
-
Step 700
700
#4D4FBE
oklch(49% 0.17 277.3)
-
Step 800
800 (this color)
#3D3F97
oklch(41.8% 0.141 277.4)
-
Step 900
900
#35397A
oklch(37.8% 0.109 277.2)
-
Step 950
950
#1F2248
oklch(27.1% 0.07 277.3)
#3D3F97 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) | #004D9A | 0.055 |
| Deuteranopia (no green cones) | #004695 | 0.052 |
| Tritanopia (no blue cones) | #005464 | 0.124 |
| Achromatopsia (no color) | #4A4A4A | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3F97
#3D3F97
oklch(41.8% 0.141 277.4)
- #5A4C00
#5A4C00
oklch(41.8% 0.086 96.9)
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 #3D3F97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.016
- Dark Slate Blue #483D8B ΔE 0.026
- Cobalt #1E488F ΔE 0.043
- Sapphire #2138AB ΔE 0.052
- Dusk Blue #26538D ΔE 0.061
- Twilight #4E518B ΔE 0.063
- Light Navy #155084 ΔE 0.069
- Twilight Blue #0A437A ΔE 0.072
Use #3D3F97 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.