#3C4064
Closest named color: Dark Grey Blue (#29465B). oklch(38.4% 0.061 278.2), rgb(60, 64, 100).
Aa
White text reads best on this color (9.95:1).
About this color
#3C4064 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.061 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.037 away. White text reads best on it, at 9.95:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.10:1 |
| White text | 9.95:1 |
Values
| HEX | #3C4064 |
| RGB | rgb(60, 64, 100) |
| HSL | hsl(234, 25%, 31%) |
| OKLCH | oklch(38.4% 0.061 278.2) |
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 #3C4064 | 9.95:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #3C4064 | 2.10:1 | Fails | Lc 10.9 | Not readable |
| #3C4064 text on white | 9.95:1 | AAA | Lc 93.1 | Preferred for body text |
| #3C4064 text on black | 2.10:1 | Fails | Lc -9.4 | 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 900.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D5D8EA
oklch(88.5% 0.025 278.3)
-
Step 300
300
#B9BEDF
oklch(80.8% 0.047 278.5)
-
Step 400
400
#969CCF
oklch(70.7% 0.075 279.1)
-
Step 500
500
#7C84C2
oklch(63.2% 0.094 277.7)
-
Step 600
600
#666CAE
oklch(55.5% 0.102 278.6)
-
Step 700
700
#555A96
oklch(49.1% 0.096 278.6)
-
Step 800
800
#454A7A
oklch(42.7% 0.079 277.9)
-
Step 900
900 (this color)
#3C4064
oklch(38.4% 0.061 278.2)
-
Step 950
950
#222439
oklch(26.9% 0.039 279.2)
#3C4064 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) | #344465 | 0.016 |
| Deuteranopia (no green cones) | #324163 | 0.015 |
| Tritanopia (no blue cones) | #30474D | 0.055 |
| Achromatopsia (no color) | #434343 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C4064
#3C4064
oklch(38.4% 0.061 278.2)
- #4C4419
#4C4419
oklch(38.5% 0.062 98.8)
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 #3C4064, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.037
- Charcoal #264653 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.060
- Charcoal Grey #3C4142 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.062
- Onyx #343A40 ΔE 0.064
- Light Navy #155084 ΔE 0.070
Use #3C4064 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.