#39394B
Closest named color: Onyx (#343A40). oklch(35.2% 0.031 284.7), rgb(57, 57, 75).
Aa
White text reads best on this color (11.28:1).
About this color
#39394B is a dark, muted purple. In OKLCH its lightness is 35%, its chroma 0.031 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.023 away. White text reads best on it, at 11.28:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Onyx (#343A40) |
| Black text | 1.86:1 |
| White text | 11.28:1 |
Values
| HEX | #39394B |
| RGB | rgb(57, 57, 75) |
| HSL | hsl(240, 14%, 26%) |
| OKLCH | oklch(35.2% 0.031 284.7) |
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 #39394B | 11.28:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #39394B | 1.86:1 | Fails | Lc 7.8 | Not readable |
| #39394B text on white | 11.28:1 | AAA | Lc 96.1 | Preferred for body text |
| #39394B text on black | 1.86:1 | Fails | Lc 0.0 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D8D8E2
oklch(88.5% 0.014 286.1)
-
Step 300
300
#BEBFD0
oklch(80.9% 0.024 283.2)
-
Step 400
400
#9D9EB8
oklch(70.7% 0.038 283.6)
-
Step 500
500
#8686A6
oklch(63.1% 0.048 285)
-
Step 600
600
#706F91
oklch(55.5% 0.052 285.9)
-
Step 700
700
#5D5D7B
oklch(49% 0.048 284.5)
-
Step 800
800
#4C4C64
oklch(42.6% 0.04 284.6)
-
Step 900
900 (this color)
#39394B
oklch(35.2% 0.031 284.7)
-
Step 950
950
#252530
oklch(26.9% 0.02 285)
#39394B 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) | #343B4C | 0.009 |
| Deuteranopia (no green cones) | #343A4B | 0.008 |
| Tritanopia (no blue cones) | #353C3F | 0.027 |
| Achromatopsia (no color) | #3B3B3B | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39394B
#39394B
oklch(35.2% 0.031 284.7)
- #3D3C29
#3D3C29
oklch(35.1% 0.031 105.4)
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 #39394B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.023
- Charcoal Grey #3C4142 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.036
- Gunmetal #293241 ΔE 0.039
- Charcoal #264653 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.049
Use #39394B 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.