#384E59
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41% 0.033 230.2), rgb(56, 78, 89).
Aa
White text reads best on this color (8.74:1).
About this color
#384E59 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.033 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.023 away. White text reads best on it, at 8.74:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.40:1 |
| White text | 8.74:1 |
Values
| HEX | #384E59 |
| RGB | rgb(56, 78, 89) |
| HSL | hsl(200, 23%, 28%) |
| OKLCH | oklch(41% 0.033 230.2) |
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 #384E59 | 8.74:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #384E59 | 2.40:1 | Fails | Lc 14.1 | Not readable |
| #384E59 text on white | 8.74:1 | AAA | Lc 89.9 | Fine for body text |
| #384E59 text on black | 2.40:1 | Fails | Lc -12.3 | 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 800.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D2DBDF
oklch(88.6% 0.011 226)
-
Step 300
300
#B5C3CB
oklch(80.9% 0.019 232.6)
-
Step 400
400
#8EA5B0
oklch(70.8% 0.03 228.3)
-
Step 500
500
#728E9D
oklch(63% 0.039 231.5)
-
Step 600
600
#5A7888
oklch(55.5% 0.043 231.8)
-
Step 700
700
#496573
oklch(49% 0.04 230.2)
-
Step 800
800 (this color)
#384E59
oklch(41% 0.033 230.2)
-
Step 900
900
#34444D
oklch(37.6% 0.026 233)
-
Step 950
950
#1E282D
oklch(27% 0.017 229.8)
#384E59 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) | #494D5A | 0.025 |
| Deuteranopia (no green cones) | #444959 | 0.022 |
| Tritanopia (no blue cones) | #2D5151 | 0.024 |
| Achromatopsia (no color) | #4B4B4B | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384E59
#384E59
oklch(41% 0.033 230.2)
- #59453B
#59453B
oklch(40.9% 0.032 47.9)
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 #384E59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.023
- Dark Grey Blue #29465B ΔE 0.035
- Charcoal #264653 ΔE 0.037
- Deep Teal #00555A ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.047
- Dark Teal #014D4E ΔE 0.051
- Dark Blue Green #005249 ΔE 0.057
- YInMn Blue #415A77 ΔE 0.058
Use #384E59 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.