#2F4E56
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.3% 0.039 215.9), rgb(47, 78, 86).
Aa
White text reads best on this color (8.95:1).
About this color
#2F4E56 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.039 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.013 away. White text reads best on it, at 8.95:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.34:1 |
| White text | 8.95:1 |
Values
| HEX | #2F4E56 |
| RGB | rgb(47, 78, 86) |
| HSL | hsl(192, 29%, 26%) |
| OKLCH | oklch(40.3% 0.039 215.9) |
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 #2F4E56 | 8.95:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #2F4E56 | 2.34:1 | Fails | Lc 13.5 | Not readable |
| #2F4E56 text on white | 8.95:1 | AAA | Lc 90.5 | Preferred for body text |
| #2F4E56 text on black | 2.34:1 | Fails | Lc -11.8 | 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 800.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D0DBDE
oklch(88.4% 0.013 215.8)
-
Step 300
300
#B1C5CA
oklch(81% 0.023 214.4)
-
Step 400
400
#88A7AF
oklch(70.8% 0.036 215.2)
-
Step 500
500
#69919C
oklch(63.1% 0.047 216.6)
-
Step 600
600
#507B86
oklch(55.6% 0.05 215.6)
-
Step 700
700
#406872
oklch(49.2% 0.048 215.4)
-
Step 800
800 (this color)
#2F4E56
oklch(40.3% 0.039 215.9)
-
Step 900
900
#2F464C
oklch(37.8% 0.03 215.8)
-
Step 950
950
#1C292C
oklch(27% 0.019 213.5)
#2F4E56 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) | #484C56 | 0.034 |
| Deuteranopia (no green cones) | #424756 | 0.032 |
| Tritanopia (no blue cones) | #1E5150 | 0.023 |
| Achromatopsia (no color) | #494949 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4E56
#2F4E56
oklch(40.3% 0.039 215.9)
- #5C413A
#5C413A
oklch(40.3% 0.04 35.1)
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 #2F4E56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.013
- Charcoal #264653 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.032
- Deep Teal #00555A ΔE 0.034
- Dark Teal #014D4E ΔE 0.038
- Dark Blue Green #005249 ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.045
- Petrol #005F6A ΔE 0.056
Use #2F4E56 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.