#39374E
Closest named color: Onyx (#343A40). oklch(34.9% 0.04 288.1), rgb(57, 55, 78).
Aa
White text reads best on this color (11.47:1).
About this color
#39374E is a dark, muted purple. In OKLCH its lightness is 35%, its chroma 0.040 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.031 away. White text reads best on it, at 11.47:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Onyx (#343A40) |
| Black text | 1.83:1 |
| White text | 11.47:1 |
Values
| HEX | #39374E |
| RGB | rgb(57, 55, 78) |
| HSL | hsl(245, 17%, 26%) |
| OKLCH | oklch(34.9% 0.04 288.1) |
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 #39374E | 11.47:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #39374E | 1.83:1 | Fails | Lc 7.4 | Not readable |
| #39374E text on white | 11.47:1 | AAA | Lc 96.4 | Preferred for body text |
| #39374E text on black | 1.83:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9EF
oklch(93.6% 0.008 286.2)
-
Step 200
200
#D8D8E4
oklch(88.6% 0.016 286.1)
-
Step 300
300
#BFBED3
oklch(80.9% 0.029 287.9)
-
Step 400
400
#9F9CBD
oklch(70.6% 0.048 289.3)
-
Step 500
500
#8784AD
oklch(63.1% 0.061 287.9)
-
Step 600
600
#716D98
oklch(55.5% 0.066 288.3)
-
Step 700
700
#5F5B82
oklch(49.1% 0.062 288.6)
-
Step 800
800
#4D4B6A
oklch(42.8% 0.051 287)
-
Step 900
900 (this color)
#39374E
oklch(34.9% 0.04 288.1)
-
Step 950
950
#262532
oklch(27.1% 0.024 288.2)
#39374E 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) | #313A4F | 0.015 |
| Deuteranopia (no green cones) | #31394D | 0.014 |
| Tritanopia (no blue cones) | #343B3F | 0.035 |
| Achromatopsia (no color) | #393939 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39374E
#39374E
oklch(34.9% 0.04 288.1)
- #3C3C23
#3C3C23
oklch(34.9% 0.04 108.3)
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 #39374E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.031
- Dark Blue Grey #1F3B4D ΔE 0.038
- Gunmetal #293241 ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.049
- Charcoal #264653 ΔE 0.051
Use #39374E 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.