#393E59
Closest named color: Dark Grey Blue (#29465B). oklch(37.1% 0.047 275.8), rgb(57, 62, 89).
Aa
White text reads best on this color (10.46:1).
About this color
#393E59 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.047 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.031 away. White text reads best on it, at 10.46:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.00:1 |
| White text | 10.46:1 |
Values
| HEX | #393E59 |
| RGB | rgb(57, 62, 89) |
| HSL | hsl(231, 22%, 29%) |
| OKLCH | oklch(37.1% 0.047 275.8) |
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 #393E59 | 10.46:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #393E59 | 2.00:1 | Fails | Lc 9.7 | Not readable |
| #393E59 text on white | 10.46:1 | AAA | Lc 94.3 | Preferred for body text |
| #393E59 text on black | 2.00:1 | Fails | Lc -8.3 | 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
#BABFD8
oklch(80.9% 0.036 276.6)
-
Step 400
400
#969EC4
oklch(70.6% 0.056 275.6)
-
Step 500
500
#7D86B5
oklch(63.1% 0.072 275.8)
-
Step 600
600
#666FA1
oklch(55.5% 0.079 275.7)
-
Step 700
700
#555D8A
oklch(49.1% 0.073 275.7)
-
Step 800
800
#464C70
oklch(42.7% 0.06 276.3)
-
Step 900
900 (this color)
#393E59
oklch(37.1% 0.047 275.8)
-
Step 950
950
#222535
oklch(26.9% 0.03 276)
#393E59 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) | #36415A | 0.010 |
| Deuteranopia (no green cones) | #333E58 | 0.009 |
| Tritanopia (no blue cones) | #304347 | 0.042 |
| Achromatopsia (no color) | #3F3F3F | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393E59
#393E59
oklch(37.1% 0.047 275.8)
- #474022
#474022
oklch(37.1% 0.047 96.6)
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 #393E59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.031
- Charcoal #264653 ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.044
- Onyx #343A40 ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.052
- Gunmetal #293241 ΔE 0.059
- Midnight Green #073B4C ΔE 0.062
Use #393E59 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.