#2F4E4A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.8% 0.038 185.5), rgb(47, 78, 74).
Aa
White text reads best on this color (9.09:1).
About this color
#2F4E4A is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.038 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.008 away. White text reads best on it, at 9.09:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.30:1 |
| White text | 9.09:1 |
Values
| HEX | #2F4E4A |
| RGB | rgb(47, 78, 74) |
| HSL | hsl(172, 25%, 25%) |
| OKLCH | oklch(39.8% 0.038 185.5) |
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 #2F4E4A | 9.09:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #2F4E4A | 2.30:1 | Fails | Lc 13.1 | Not readable |
| #2F4E4A text on white | 9.09:1 | AAA | Lc 90.9 | Preferred for body text |
| #2F4E4A text on black | 2.30:1 | Fails | Lc -11.5 | 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
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDDA
oklch(88.5% 0.017 182.7)
-
Step 300
300
#ADC7C3
oklch(80.9% 0.029 185.4)
-
Step 400
400
#81AAA4
oklch(70.6% 0.045 185.1)
-
Step 500
500
#60958E
oklch(63.1% 0.058 185.4)
-
Step 600
600
#457F78
oklch(55.5% 0.062 185.6)
-
Step 700
700
#366C65
oklch(49.2% 0.059 184.6)
-
Step 800
800
#2E5853
oklch(42.8% 0.048 185.7)
-
Step 900
900 (this color)
#2F4E4A
oklch(39.8% 0.038 185.5)
-
Step 950
950
#192A28
oklch(26.9% 0.023 186.7)
#2F4E4A 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) | #4B4B4A | 0.040 |
| Deuteranopia (no green cones) | #46474A | 0.037 |
| Tritanopia (no blue cones) | #244F4D | 0.011 |
| Achromatopsia (no color) | #484848 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4E4A
#2F4E4A
oklch(39.8% 0.038 185.5)
- #593F44
#593F44
oklch(39.8% 0.037 6.1)
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 #2F4E4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.008
- Dark Blue Green #005249 ΔE 0.033
- Dark Teal #014D4E ΔE 0.033
- Deep Teal #00555A ΔE 0.037
- Charcoal #264653 ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.046
- Onyx #343A40 ΔE 0.063
Use #2F4E4A 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.