#3A424E
Closest named color: Charcoal Grey (#3C4142). oklch(37.7% 0.023 258.4), rgb(58, 66, 78).
Aa
White text reads best on this color (10.14:1).
About this color
#3A424E is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.020 away. White text reads best on it, at 10.14:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.06:1 |
| White text | 10.14:1 |
Values
| HEX | #3A424E |
| RGB | rgb(58, 66, 78) |
| HSL | hsl(216, 15%, 27%) |
| OKLCH | oklch(37.7% 0.023 258.4) |
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 #3A424E | 10.14:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #3A424E | 2.06:1 | Fails | Lc 10.4 | Not readable |
| #3A424E text on white | 10.14:1 | AAA | Lc 93.6 | Preferred for body text |
| #3A424E text on black | 2.06:1 | Fails | Lc -8.9 | 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 900.
-
Step 50
50
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D5D9E0
oklch(88.4% 0.011 261.8)
-
Step 300
300
#BAC1CC
oklch(80.9% 0.017 259.4)
-
Step 400
400
#96A1B2
oklch(70.6% 0.028 259)
-
Step 500
500
#7D8A9F
oklch(63% 0.035 260)
-
Step 600
600
#66748A
oklch(55.5% 0.038 259.4)
-
Step 700
700
#546275
oklch(49.2% 0.035 256.1)
-
Step 800
800
#455060
oklch(42.8% 0.03 257.7)
-
Step 900
900 (this color)
#3A424E
oklch(37.7% 0.023 258.4)
-
Step 950
950
#22272E
oklch(27.1% 0.015 256.8)
#3A424E 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) | #3E424F | 0.007 |
| Deuteranopia (no green cones) | #3C414E | 0.004 |
| Tritanopia (no blue cones) | #354446 | 0.019 |
| Achromatopsia (no color) | #414141 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A424E
#3A424E
oklch(37.7% 0.023 258.4)
- #484034
#484034
oklch(37.6% 0.023 77.9)
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 #3A424E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.020
- Charcoal #264653 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.029
- Onyx #343A40 ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.046
- Dark Teal #014D4E ΔE 0.058
- Gunmetal #293241 ΔE 0.062
Use #3A424E 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.