#2F3F44
Closest named color: Onyx (#343A40). oklch(35.6% 0.022 218.9), rgb(47, 63, 68).
Aa
White text reads best on this color (10.96:1).
About this color
#2F3F44 is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.016 away. White text reads best on it, at 10.96:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.91:1 |
| White text | 10.96:1 |
Values
| HEX | #2F3F44 |
| RGB | rgb(47, 63, 68) |
| HSL | hsl(194, 18%, 23%) |
| OKLCH | oklch(35.6% 0.022 218.9) |
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 #2F3F44 | 10.96:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #2F3F44 | 1.91:1 | Fails | Lc 8.5 | Not readable |
| #2F3F44 text on white | 10.96:1 | AAA | Lc 95.4 | Preferred for body text |
| #2F3F44 text on black | 1.91:1 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D3DBDD
oklch(88.6% 0.009 214.3)
-
Step 300
300
#B5C3C8
oklch(80.8% 0.017 221.1)
-
Step 400
400
#8FA5AC
oklch(70.7% 0.027 218.9)
-
Step 500
500
#738F98
oklch(63.2% 0.034 219.3)
-
Step 600
600
#5B7982
oklch(55.6% 0.037 218.2)
-
Step 700
700
#4B666E
oklch(49.2% 0.034 218)
-
Step 800
800
#3D535A
oklch(42.7% 0.029 219.4)
-
Step 900
900 (this color)
#2F3F44
oklch(35.6% 0.022 218.9)
-
Step 950
950
#1F282B
oklch(26.9% 0.014 220.1)
#2F3F44 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) | #3C3E44 | 0.020 |
| Deuteranopia (no green cones) | #383B44 | 0.018 |
| Tritanopia (no blue cones) | #284141 | 0.013 |
| Achromatopsia (no color) | #3C3C3C | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F3F44
#2F3F44
oklch(35.6% 0.022 218.9)
- #473833
#473833
oklch(35.5% 0.023 39.3)
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 #2F3F44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.016
- Charcoal Grey #3C4142 ΔE 0.022
- Charcoal #264653 ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.032
- Dark Grey Blue #29465B ΔE 0.040
- Gunmetal #293241 ΔE 0.045
- Midnight Green #073B4C ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.051
Use #2F3F44 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.