#3C508A
Closest named color: Dusk Blue (#26538D). oklch(44.4% 0.099 267.9), rgb(60, 80, 138).
Aa
White text reads best on this color (7.75:1).
About this color
#3C508A is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.099 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.024 away. White text reads best on it, at 7.75:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #3C508A |
| RGB | rgb(60, 80, 138) |
| HSL | hsl(225, 39%, 39%) |
| OKLCH | oklch(44.4% 0.099 267.9) |
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 #3C508A | 7.75:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #3C508A | 2.70:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #3C508A text on white | 7.75:1 | AAA | Lc 86.8 | Fine for body text |
| #3C508A text on black | 2.70:1 | Fails | Lc -15.3 | 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 800.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EF
oklch(88.5% 0.032 268)
-
Step 300
300
#B0C0E7
oklch(80.9% 0.058 267.6)
-
Step 400
400
#889FDB
oklch(70.8% 0.092 267.9)
-
Step 500
500
#6B86D1
oklch(63.2% 0.118 267.9)
-
Step 600
600
#536EBE
oklch(55.6% 0.128 268)
-
Step 700
700
#445CA4
oklch(49.2% 0.119 268)
-
Step 800
800 (this color)
#3C508A
oklch(44.4% 0.099 267.9)
-
Step 900
900
#303F6A
oklch(37.6% 0.076 268.1)
-
Step 950
950
#1C253E
oklch(26.9% 0.049 268)
#3C508A 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) | #38568C | 0.017 |
| Deuteranopia (no green cones) | #2E4F89 | 0.017 |
| Tritanopia (no blue cones) | #105D66 | 0.089 |
| Achromatopsia (no color) | #525252 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C508A
#3C508A
oklch(44.4% 0.099 267.9)
- #695000
#695000
oklch(44.5% 0.091 87.8)
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 #3C508A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.024
- Twilight #4E518B ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.032
- Light Navy Blue #2E5A88 ΔE 0.032
- Dusk #4E5481 ΔE 0.033
- Light Navy #155084 ΔE 0.039
- Cobalt #1E488F ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.047
Use #3C508A 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.