#3D3797
Closest named color: Blueberry (#464196). oklch(40.4% 0.152 279.9), rgb(61, 55, 151).
Aa
White text reads best on this color (9.58:1).
About this color
#3D3797 is a dark, vivid blue. In OKLCH its lightness is 40%, its chroma 0.152 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.030 away. White text reads best on it, at 9.58:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.19:1 |
| White text | 9.58:1 |
Values
| HEX | #3D3797 |
| RGB | rgb(61, 55, 151) |
| HSL | hsl(244, 47%, 40%) |
| OKLCH | oklch(40.4% 0.152 279.9) |
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 #3D3797 | 9.58:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #3D3797 | 2.19:1 | Fails | Lc 12.2 | Not readable |
| #3D3797 text on white | 9.58:1 | AAA | Lc 91.7 | Preferred for body text |
| #3D3797 text on black | 2.19:1 | Fails | Lc -10.6 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D2D6FA
oklch(88.4% 0.05 280.3)
-
Step 300
300
#B5BBF9
oklch(80.9% 0.088 279.9)
-
Step 400
400
#9095F7
oklch(70.7% 0.142 279.9)
-
Step 500
500
#7777F3
oklch(63.1% 0.181 279.9)
-
Step 600
600
#625CE2
oklch(55.6% 0.197 279.8)
-
Step 700
700
#524AC4
oklch(49% 0.184 280.1)
-
Step 800
800 (this color)
#3D3797
oklch(40.4% 0.152 279.9)
-
Step 900
900
#38367E
oklch(37.7% 0.118 280.3)
-
Step 950
950
#20204A
oklch(26.9% 0.076 280)
#3D3797 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) | #00499A | 0.062 |
| Deuteranopia (no green cones) | #004195 | 0.057 |
| Tritanopia (no blue cones) | #014F61 | 0.132 |
| Achromatopsia (no color) | #454545 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3797
#3D3797
oklch(40.4% 0.152 279.9)
- #534900
#534900
oklch(40.3% 0.084 100.4)
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 #3D3797, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.030
- Dark Slate Blue #483D8B ΔE 0.032
- Sapphire #2138AB ΔE 0.048
- Cobalt #1E488F ΔE 0.055
- Indigo Blue #3A18B1 ΔE 0.065
- Imperial Purple #480CA8 ΔE 0.067
- Rebecca Purple #663399 ΔE 0.074
- Chrysanthemum #560BAD ΔE 0.077
Use #3D3797 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.