#3A4E45
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.4% 0.029 165.6), rgb(58, 78, 69).
Aa
White text reads best on this color (8.91:1).
About this color
#3A4E45 is a dark close to neutral grey. In OKLCH its lightness is 40%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.019 away. White text reads best on it, at 8.91:1.
| Hue family | Neutrals |
| Lightness | dark (40%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.35:1 |
| White text | 8.91:1 |
Values
| HEX | #3A4E45 |
| RGB | rgb(58, 78, 69) |
| HSL | hsl(153, 15%, 27%) |
| OKLCH | oklch(40.4% 0.029 165.6) |
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 #3A4E45 | 8.91:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #3A4E45 | 2.35:1 | Fails | Lc 13.5 | Not readable |
| #3A4E45 text on white | 8.91:1 | AAA | Lc 90.4 | Preferred for body text |
| #3A4E45 text on black | 2.35:1 | Fails | Lc -11.9 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE9
oklch(93.6% 0.005 165)
-
Step 200
200
#D4DBD7
oklch(88.5% 0.009 161.3)
-
Step 300
300
#B7C4BE
oklch(80.9% 0.017 166.6)
-
Step 400
400
#91A69C
oklch(70.6% 0.028 165.3)
-
Step 500
500
#769184
oklch(63.2% 0.036 164.5)
-
Step 600
600
#5F7B6E
oklch(55.7% 0.038 165)
-
Step 700
700
#4E675C
oklch(49% 0.035 166.2)
-
Step 800
800 (this color)
#3A4E45
oklch(40.4% 0.029 165.6)
-
Step 900
900
#36463F
oklch(37.8% 0.024 166.6)
-
Step 950
950
#202925
oklch(27.1% 0.015 166.5)
#3A4E45 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) | #4D4B45 | 0.029 |
| Deuteranopia (no green cones) | #494946 | 0.027 |
| Tritanopia (no blue cones) | #364E4B | 0.011 |
| Achromatopsia (no color) | #4A4A4A | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A4E45
#3A4E45
oklch(40.4% 0.029 165.6)
- #55434C
#55434C
oklch(40.5% 0.028 346.9)
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 #3A4E45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.019
- Charcoal Grey #3C4142 ΔE 0.041
- Dark Blue Green #005249 ΔE 0.044
- Dark Teal #014D4E ΔE 0.048
- Charcoal #264653 ΔE 0.048
- Deep Teal #00555A ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.056
- Pine #2B5D34 ΔE 0.065
Use #3A4E45 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.