#39443E
Closest named color: Charcoal Grey (#3C4142). oklch(37.5% 0.018 161.6), rgb(57, 68, 62).
Aa
White text reads best on this color (10.14:1).
About this color
#39443E is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.015 away. White text reads best on it, at 10.14:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.07:1 |
| White text | 10.14:1 |
Values
| HEX | #39443E |
| RGB | rgb(57, 68, 62) |
| HSL | hsl(147, 9%, 25%) |
| OKLCH | oklch(37.5% 0.018 161.6) |
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 #39443E | 10.14:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #39443E | 2.07:1 | Fails | Lc 10.4 | Not readable |
| #39443E text on white | 10.14:1 | AAA | Lc 93.6 | Preferred for body text |
| #39443E text on black | 2.07:1 | Fails | Lc -9.0 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E8EBE9
oklch(93.7% 0.004 157.2)
-
Step 200
200
#D5DBD7
oklch(88.6% 0.008 157.1)
-
Step 300
300
#BAC3BE
oklch(80.9% 0.012 162)
-
Step 400
400
#96A59C
oklch(70.7% 0.021 159.5)
-
Step 500
500
#7C8F84
oklch(63.2% 0.027 160.2)
-
Step 600
600
#65796E
oklch(55.6% 0.029 161.3)
-
Step 700
700
#53665C
oklch(49.1% 0.028 162.3)
-
Step 800
800
#44534B
oklch(42.7% 0.023 162)
-
Step 900
900 (this color)
#39443E
oklch(37.5% 0.018 161.6)
-
Step 950
950
#222825
oklch(27% 0.01 164.1)
#39443E 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) | #44423E | 0.018 |
| Deuteranopia (no green cones) | #42413E | 0.017 |
| Tritanopia (no blue cones) | #374442 | 0.007 |
| Achromatopsia (no color) | #414141 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39443E
#39443E
oklch(37.5% 0.018 161.6)
- #483D44
#483D44
oklch(37.4% 0.019 339.6)
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 #39443E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.015
- Onyx #343A40 ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.038
- Charcoal #264653 ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.050
- Dark Teal #014D4E ΔE 0.051
- Dark Blue Green #005249 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.058
Use #39443E 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.