#3E445F
Closest named color: Dark Grey Blue (#29465B). oklch(39.3% 0.047 274.4), rgb(62, 68, 95).
Aa
White text reads best on this color (9.55:1).
About this color
#3E445F is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.047 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.030 away. White text reads best on it, at 9.55:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.19:1 |
| White text | 9.55:1 |
Values
| HEX | #3E445F |
| RGB | rgb(62, 68, 95) |
| HSL | hsl(229, 21%, 31%) |
| OKLCH | oklch(39.3% 0.047 274.4) |
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 #3E445F | 9.55:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #3E445F | 2.19:1 | Fails | Lc 11.8 | Not readable |
| #3E445F text on white | 9.55:1 | AAA | Lc 92.1 | Preferred for body text |
| #3E445F text on black | 2.19:1 | Fails | Lc -10.3 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E6
oklch(88.4% 0.019 276.3)
-
Step 300
300
#B9BFD8
oklch(80.8% 0.036 274.9)
-
Step 400
400
#969FC4
oklch(70.8% 0.055 274.2)
-
Step 500
500
#7C86B5
oklch(63% 0.072 274.9)
-
Step 600
600
#6570A1
oklch(55.6% 0.077 273.9)
-
Step 700
700
#545D8A
oklch(49% 0.073 274.7)
-
Step 800
800
#454C70
oklch(42.6% 0.061 275.1)
-
Step 900
900 (this color)
#3E445F
oklch(39.3% 0.047 274.4)
-
Step 950
950
#222535
oklch(26.9% 0.03 276)
#3E445F 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) | #3C4760 | 0.009 |
| Deuteranopia (no green cones) | #39445E | 0.008 |
| Tritanopia (no blue cones) | #35494D | 0.042 |
| Achromatopsia (no color) | #454545 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E445F
#3E445F
oklch(39.3% 0.047 274.4)
- #4E4628
#4E4628
oklch(39.4% 0.047 94.9)
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 #3E445F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.030
- Charcoal #264653 ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.055
- Onyx #343A40 ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.061
- Twilight Blue #0A437A ΔE 0.068
- YInMn Blue #415A77 ΔE 0.070
Use #3E445F 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.