#2F433F
Closest named color: Charcoal Grey (#3C4142). oklch(36.5% 0.026 181), rgb(47, 67, 63).
Aa
White text reads best on this color (10.52:1).
About this color
#2F433F is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.022 away. White text reads best on it, at 10.52:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.99:1 |
| White text | 10.52:1 |
Values
| HEX | #2F433F |
| RGB | rgb(47, 67, 63) |
| HSL | hsl(168, 18%, 22%) |
| OKLCH | oklch(36.5% 0.026 181) |
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 #2F433F | 10.52:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #2F433F | 1.99:1 | Fails | Lc 9.5 | Not readable |
| #2F433F text on white | 10.52:1 | AAA | Lc 94.4 | Preferred for body text |
| #2F433F text on black | 1.99:1 | Fails | Lc -8.2 | 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
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D2DCD9
oklch(88.6% 0.012 176.3)
-
Step 300
300
#B4C5C1
oklch(80.9% 0.019 180.1)
-
Step 400
400
#8CA7A2
oklch(70.6% 0.031 183)
-
Step 500
500
#6F928B
oklch(63.2% 0.04 181.3)
-
Step 600
600
#577C75
oklch(55.6% 0.043 181.6)
-
Step 700
700
#476962
oklch(49.2% 0.041 180.3)
-
Step 800
800
#3A5550
oklch(42.6% 0.034 181.9)
-
Step 900
900 (this color)
#2F433F
oklch(36.5% 0.026 181)
-
Step 950
950
#1E2927
oklch(27% 0.016 182.8)
#2F433F 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) | #41413F | 0.027 |
| Deuteranopia (no green cones) | #3E3E3F | 0.027 |
| Tritanopia (no blue cones) | #294442 | 0.008 |
| Achromatopsia (no color) | #3F3F3F | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F433F
#2F433F
oklch(36.5% 0.026 181)
- #4A393D
#4A393D
oklch(36.5% 0.025 2.7)
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 #2F433F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.022
- Onyx #343A40 ΔE 0.031
- Charcoal #264653 ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Teal #014D4E ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.047
- Dark Blue Green #005249 ΔE 0.053
Use #2F433F 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.