#3D4C83
Closest named color: Dusk Blue (#26538D). oklch(43.1% 0.093 270.6), rgb(61, 76, 131).
Aa
White text reads best on this color (8.20:1).
About this color
#3D4C83 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.093 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.031 away. White text reads best on it, at 8.20:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.55:1 |
| White text | 8.20:1 |
Values
| HEX | #3D4C83 |
| RGB | rgb(61, 76, 131) |
| HSL | hsl(227, 36%, 38%) |
| OKLCH | oklch(43.1% 0.093 270.6) |
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 #3D4C83 | 8.20:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #3D4C83 | 2.55:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #3D4C83 text on white | 8.20:1 | AAA | Lc 88.2 | Fine for body text |
| #3D4C83 text on black | 2.55:1 | Fails | Lc -13.9 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF5
oklch(93.7% 0.015 270)
-
Step 200
200
#D1D9EE
oklch(88.6% 0.03 269.1)
-
Step 300
300
#B3C0E5
oklch(81% 0.054 269.9)
-
Step 400
400
#8C9ED8
oklch(70.7% 0.088 270.8)
-
Step 500
500
#7085CD
oklch(63.1% 0.111 270.6)
-
Step 600
600
#596EBA
oklch(55.7% 0.121 270.5)
-
Step 700
700
#495BA0
oklch(49% 0.113 270.8)
-
Step 800
800 (this color)
#3D4C83
oklch(43.1% 0.093 270.6)
-
Step 900
900
#333F68
oklch(37.7% 0.072 270.3)
-
Step 950
950
#1E253D
oklch(27% 0.046 270.7)
#3D4C83 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) | #365285 | 0.018 |
| Deuteranopia (no green cones) | #2E4C82 | 0.019 |
| Tritanopia (no blue cones) | #1D5861 | 0.083 |
| Achromatopsia (no color) | #4F4F4F | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D4C83
#3D4C83
oklch(43.1% 0.093 270.6)
- #624D00
#624D00
oklch(43% 0.088 90.6)
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 #3D4C83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.031
- Twilight #4E518B ΔE 0.032
- Dusk #4E5481 ΔE 0.037
- Light Navy #155084 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.041
- Cobalt #1E488F ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.046
Use #3D4C83 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.