#2F4A41
Closest named color: Dark Slate Gray (#2F4F4F). oklch(38.4% 0.036 171.4), rgb(47, 74, 65).
Aa
White text reads best on this color (9.64:1).
About this color
#2F4A41 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.036 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.024 away. White text reads best on it, at 9.64:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.17:1 |
| White text | 9.64:1 |
Values
| HEX | #2F4A41 |
| RGB | rgb(47, 74, 65) |
| HSL | hsl(160, 22%, 24%) |
| OKLCH | oklch(38.4% 0.036 171.4) |
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 #2F4A41 | 9.64:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #2F4A41 | 2.17:1 | Fails | Lc 11.6 | Not readable |
| #2F4A41 text on white | 9.64:1 | AAA | Lc 92.3 | Preferred for body text |
| #2F4A41 text on black | 2.17:1 | Fails | Lc -10.1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#D0DDD8
oklch(88.6% 0.016 171)
-
Step 300
300
#B0C7BE
oklch(81% 0.028 170.1)
-
Step 400
400
#86AA9D
oklch(70.7% 0.044 171)
-
Step 500
500
#669585
oklch(63.1% 0.057 171.2)
-
Step 600
600
#4D7F6F
oklch(55.6% 0.06 171.7)
-
Step 700
700
#3D6B5D
oklch(49% 0.056 172.4)
-
Step 800
800
#33574C
oklch(42.6% 0.046 172.6)
-
Step 900
900 (this color)
#2F4A41
oklch(38.4% 0.036 171.4)
-
Step 950
950
#1B2A25
oklch(27% 0.022 171.9)
#2F4A41 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) | #484741 | 0.037 |
| Deuteranopia (no green cones) | #444342 | 0.037 |
| Tritanopia (no blue cones) | #284A47 | 0.012 |
| Achromatopsia (no color) | #454545 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4A41
#2F4A41
oklch(38.4% 0.036 171.4)
- #533C46
#533C46
oklch(38.5% 0.036 351.1)
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 #2F4A41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.024
- Charcoal Grey #3C4142 ΔE 0.034
- Dark Teal #014D4E ΔE 0.035
- Dark Blue Green #005249 ΔE 0.037
- Charcoal #264653 ΔE 0.039
- Deep Teal #00555A ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.051
- Onyx #343A40 ΔE 0.053
Use #2F4A41 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.