#2F4841
Closest named color: Dark Slate Gray (#2F4F4F). oklch(37.9% 0.033 175.1), rgb(47, 72, 65).
Aa
White text reads best on this color (9.88:1).
About this color
#2F4841 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.033 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.028 away. White text reads best on it, at 9.88:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.12:1 |
| White text | 9.88:1 |
Values
| HEX | #2F4841 |
| RGB | rgb(47, 72, 65) |
| HSL | hsl(163, 21%, 23%) |
| OKLCH | oklch(37.9% 0.033 175.1) |
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 #2F4841 | 9.88:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #2F4841 | 2.12:1 | Fails | Lc 11.0 | Not readable |
| #2F4841 text on white | 9.88:1 | AAA | Lc 92.9 | Preferred for body text |
| #2F4841 text on black | 2.12:1 | Fails | Lc -9.6 | 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
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D0DCD8
oklch(88.4% 0.014 174.1)
-
Step 300
300
#B1C6C0
oklch(80.9% 0.024 176.7)
-
Step 400
400
#87A99F
oklch(70.6% 0.04 175.3)
-
Step 500
500
#699488
oklch(63.2% 0.05 175.4)
-
Step 600
600
#4F7E71
oklch(55.5% 0.056 174.8)
-
Step 700
700
#406A5F
oklch(49% 0.051 175.6)
-
Step 800
800
#35574E
oklch(42.8% 0.043 175.6)
-
Step 900
900 (this color)
#2F4841
oklch(37.9% 0.033 175.1)
-
Step 950
950
#1C2A26
oklch(27.1% 0.02 175.1)
#2F4841 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) | #464541 | 0.034 |
| Deuteranopia (no green cones) | #424241 | 0.033 |
| Tritanopia (no blue cones) | #284946 | 0.010 |
| Achromatopsia (no color) | #434343 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4841
#2F4841
oklch(37.9% 0.033 175.1)
- #513B43
#513B43
oklch(38% 0.033 355.2)
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 #2F4841, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.028
- Charcoal Grey #3C4142 ΔE 0.029
- Charcoal #264653 ΔE 0.035
- Dark Teal #014D4E ΔE 0.036
- Dark Blue Green #005249 ΔE 0.041
- Onyx #343A40 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.048
- Deep Teal #00555A ΔE 0.052
Use #2F4841 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.