#3C4F8A
Closest named color: Dusk Blue (#26538D). oklch(44.2% 0.1 268.6), rgb(60, 79, 138).
Aa
White text reads best on this color (7.84:1).
About this color
#3C4F8A is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.100 and its hue 269°. 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 7.84:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.67:1 |
| White text | 7.84:1 |
Values
| HEX | #3C4F8A |
| RGB | rgb(60, 79, 138) |
| HSL | hsl(225, 39%, 39%) |
| OKLCH | oklch(44.2% 0.1 268.6) |
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 #3C4F8A | 7.84:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #3C4F8A | 2.67:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #3C4F8A text on white | 7.84:1 | AAA | Lc 87.1 | Fine for body text |
| #3C4F8A text on black | 2.67:1 | Fails | Lc -15.0 | 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
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D9EF
oklch(88.5% 0.032 268)
-
Step 300
300
#B1C0E7
oklch(80.9% 0.058 268.6)
-
Step 400
400
#889EDC
oklch(70.6% 0.095 268.9)
-
Step 500
500
#6B85D2
oklch(63% 0.12 268.7)
-
Step 600
600
#546EBF
oklch(55.7% 0.129 268.6)
-
Step 700
700
#445BA5
oklch(49% 0.122 268.6)
-
Step 800
800 (this color)
#3C4F8A
oklch(44.2% 0.1 268.6)
-
Step 900
900
#303F6B
oklch(37.7% 0.078 268.3)
-
Step 950
950
#1C253F
oklch(27% 0.05 268.4)
#3C4F8A 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) | #36558C | 0.017 |
| Deuteranopia (no green cones) | #2D4F89 | 0.018 |
| Tritanopia (no blue cones) | #105C66 | 0.089 |
| Achromatopsia (no color) | #525252 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C4F8A
#3C4F8A
oklch(44.2% 0.1 268.6)
- #674F00
#674F00
oklch(44% 0.09 88.4)
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 #3C4F8A, 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 0.027
- Denim Blue #3B5B92 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.035
- Dusk #4E5481 ΔE 0.035
- Light Navy #155084 ΔE 0.039
- Cobalt #1E488F ΔE 0.042
- Blueberry #464196 ΔE 0.046
Use #3C4F8A 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.