#2F4F46
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40% 0.041 174.4), rgb(47, 79, 70).
Aa
White text reads best on this color (9.02:1).
About this color
#2F4F46 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.041 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.015 away. White text reads best on it, at 9.02:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.32:1 |
| White text | 9.02:1 |
Values
| HEX | #2F4F46 |
| RGB | rgb(47, 79, 70) |
| HSL | hsl(163, 25%, 25%) |
| OKLCH | oklch(40% 0.041 174.4) |
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 #2F4F46 | 9.02:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #2F4F46 | 2.32:1 | Fails | Lc 13.3 | Not readable |
| #2F4F46 text on white | 9.02:1 | AAA | Lc 90.7 | Preferred for body text |
| #2F4F46 text on black | 2.32:1 | Fails | Lc -11.6 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CEDDD8
oklch(88.5% 0.017 174)
-
Step 300
300
#ADC7BF
oklch(80.8% 0.03 175)
-
Step 400
400
#81AB9E
oklch(70.7% 0.049 173.8)
-
Step 500
500
#609687
oklch(63.1% 0.062 174.8)
-
Step 600
600
#448170
oklch(55.7% 0.069 173.5)
-
Step 700
700
#356D5E
oklch(49.2% 0.065 173.9)
-
Step 800
800
#2D594D
oklch(42.8% 0.053 173.9)
-
Step 900
900 (this color)
#2F4F46
oklch(40% 0.041 174.4)
-
Step 950
950
#182B25
oklch(27% 0.027 172.2)
#2F4F46 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) | #4D4B46 | 0.043 |
| Deuteranopia (no green cones) | #474747 | 0.041 |
| Tritanopia (no blue cones) | #25504C | 0.013 |
| Achromatopsia (no color) | #494949 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4F46
#2F4F46
oklch(40% 0.041 174.4)
- #5A3E49
#5A3E49
oklch(39.9% 0.042 353.9)
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 #2F4F46, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.015
- Dark Blue Green #005249 ΔE 0.031
- Dark Teal #014D4E ΔE 0.036
- Deep Teal #00555A ΔE 0.039
- Charcoal #264653 ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.054
- Dark Green Blue #1F6357 ΔE 0.062
Use #2F4F46 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.