#2F4646
Closest named color: Charcoal Grey (#3C4142). oklch(37.5% 0.028 196), rgb(47, 70, 70).
Aa
White text reads best on this color (10.07:1).
About this color
#2F4646 is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.028. 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 10.07:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.08:1 |
| White text | 10.07:1 |
Values
| HEX | #2F4646 |
| RGB | rgb(47, 70, 70) |
| HSL | hsl(180, 20%, 23%) |
| OKLCH | oklch(37.5% 0.028 196) |
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 #2F4646 | 10.07:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #2F4646 | 2.08:1 | Fails | Lc 10.6 | Not readable |
| #2F4646 text on white | 10.07:1 | AAA | Lc 93.3 | Preferred for body text |
| #2F4646 text on black | 2.08:1 | Fails | Lc -9.1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D1DCDC
oklch(88.6% 0.012 196.9)
-
Step 300
300
#B2C5C5
oklch(80.9% 0.021 196.7)
-
Step 400
400
#89A8A7
oklch(70.8% 0.034 194)
-
Step 500
500
#6A9292
oklch(63.1% 0.044 196.1)
-
Step 600
600
#517C7C
oklch(55.5% 0.048 195.9)
-
Step 700
700
#426969
oklch(49.2% 0.044 195.8)
-
Step 800
800
#365555
oklch(42.5% 0.037 195.9)
-
Step 900
900 (this color)
#2F4646
oklch(37.5% 0.028 196)
-
Step 950
950
#1C2929
oklch(26.9% 0.018 196.1)
#2F4646 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) | #434446 | 0.030 |
| Deuteranopia (no green cones) | #3F4046 | 0.029 |
| Tritanopia (no blue cones) | #274746 | 0.010 |
| Achromatopsia (no color) | #424242 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4646
#2F4646
oklch(37.5% 0.028 196)
- #4F3B3C
#4F3B3C
oklch(37.5% 0.028 15.2)
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 #2F4646, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.022
- Charcoal #264653 ΔE 0.024
- Dark Slate Gray #2F4F4F ΔE 0.029
- Dark Teal #014D4E ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.037
- Onyx #343A40 ΔE 0.038
- Dark Blue Green #005249 ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.049
Use #2F4646 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.