#2F424E
Closest named color: Charcoal (#264653). oklch(36.8% 0.032 236.5), rgb(47, 66, 78).
Aa
White text reads best on this color (10.44:1).
About this color
#2F424E is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.032 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.016 away. White text reads best on it, at 10.44:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.01:1 |
| White text | 10.44:1 |
Values
| HEX | #2F424E |
| RGB | rgb(47, 66, 78) |
| HSL | hsl(203, 25%, 25%) |
| OKLCH | oklch(36.8% 0.032 236.5) |
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 #2F424E | 10.44:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #2F424E | 2.01:1 | Fails | Lc 9.7 | Not readable |
| #2F424E text on white | 10.44:1 | AAA | Lc 94.2 | Preferred for body text |
| #2F424E text on black | 2.01:1 | Fails | Lc -8.3 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBEE
oklch(93.7% 0.007 233.6)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B3C3CE
oklch(80.8% 0.023 237.7)
-
Step 400
400
#8BA5B6
oklch(70.8% 0.038 236.8)
-
Step 500
500
#6D8EA4
oklch(63% 0.05 237.8)
-
Step 600
600
#55788F
oklch(55.5% 0.054 237.8)
-
Step 700
700
#456579
oklch(49% 0.049 236.6)
-
Step 800
800
#395363
oklch(42.8% 0.041 236)
-
Step 900
900 (this color)
#2F424E
oklch(36.8% 0.032 236.5)
-
Step 950
950
#1D282F
oklch(27% 0.02 236.4)
#2F424E 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) | #3D414F | 0.021 |
| Deuteranopia (no green cones) | #383E4E | 0.017 |
| Tritanopia (no blue cones) | #244546 | 0.024 |
| Achromatopsia (no color) | #404040 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F424E
#2F424E
oklch(36.8% 0.032 236.5)
- #4D3B2F
#4D3B2F
oklch(36.8% 0.032 55.2)
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 #2F424E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.016
- Dark Grey Blue #29465B ΔE 0.023
- Charcoal Grey #3C4142 ΔE 0.026
- Onyx #343A40 ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dark Teal #014D4E ΔE 0.047
- Midnight Green #073B4C ΔE 0.048
Use #2F424E 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.