#353F45
Closest named color: Charcoal Grey (#3C4142). oklch(36.1% 0.017 234.3), rgb(53, 63, 69).
Aa
White text reads best on this color (10.77:1).
About this color
#353F45 is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.017. 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 10.77:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.94:1 |
| White text | 10.77:1 |
Values
| HEX | #353F45 |
| RGB | rgb(53, 63, 69) |
| HSL | hsl(203, 13%, 24%) |
| OKLCH | oklch(36.1% 0.017 234.3) |
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 #353F45 | 10.77:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #353F45 | 1.94:1 | Fails | Lc 8.9 | Not readable |
| #353F45 text on white | 10.77:1 | AAA | Lc 95.0 | Preferred for body text |
| #353F45 text on black | 1.94:1 | Fails | Lc -7.6 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D5DADD
oklch(88.5% 0.007 233.7)
-
Step 300
300
#B9C2C8
oklch(80.9% 0.013 236.7)
-
Step 400
400
#95A3AB
oklch(70.7% 0.02 232.6)
-
Step 500
500
#7B8C97
oklch(63% 0.026 236.2)
-
Step 600
600
#647682
oklch(55.5% 0.028 237.2)
-
Step 700
700
#53636E
oklch(49% 0.026 238.1)
-
Step 800
800
#445159
oklch(42.7% 0.021 235)
-
Step 900
900 (this color)
#353F45
oklch(36.1% 0.017 234.3)
-
Step 950
950
#22272B
oklch(26.9% 0.01 242.1)
#353F45 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) | #3C3F45 | 0.011 |
| Deuteranopia (no green cones) | #3A3D45 | 0.010 |
| Tritanopia (no blue cones) | #314141 | 0.013 |
| Achromatopsia (no color) | #3E3E3E | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353F45
#353F45
oklch(36.1% 0.017 234.3)
- #453B35
#453B35
oklch(36.1% 0.017 52.9)
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 #353F45, 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 0.017
- Charcoal #264653 ΔE 0.031
- Dark Blue Grey #1F3B4D ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.039
- Gunmetal #293241 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.050
- Midnight Green #073B4C ΔE 0.053
Use #353F45 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.