#2F444E
Closest named color: Charcoal (#264653). oklch(37.3% 0.031 229), rgb(47, 68, 78).
Aa
White text reads best on this color (10.20:1).
About this color
#2F444E is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.031 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.013 away. White text reads best on it, at 10.20:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.05:1 |
| White text | 10.20:1 |
Values
| HEX | #2F444E |
| RGB | rgb(47, 68, 78) |
| HSL | hsl(199, 25%, 25%) |
| OKLCH | oklch(37.3% 0.031 229) |
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 #2F444E | 10.20:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #2F444E | 2.05:1 | Fails | Lc 10.3 | Not readable |
| #2F444E text on white | 10.20:1 | AAA | Lc 93.7 | Preferred for body text |
| #2F444E text on black | 2.05:1 | Fails | Lc -8.9 | 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
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D1DBE0
oklch(88.5% 0.013 228.9)
-
Step 300
300
#B2C4CD
oklch(80.9% 0.023 229.2)
-
Step 400
400
#89A6B4
oklch(70.8% 0.038 228.7)
-
Step 500
500
#6B90A1
oklch(63.2% 0.048 227.9)
-
Step 600
600
#527A8C
oklch(55.7% 0.053 227.9)
-
Step 700
700
#436677
oklch(49% 0.049 230)
-
Step 800
800
#375361
oklch(42.6% 0.041 230.6)
-
Step 900
900 (this color)
#2F444E
oklch(37.3% 0.031 229)
-
Step 950
950
#1C282E
oklch(26.8% 0.02 230)
#2F444E 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) | #3F434F | 0.024 |
| Deuteranopia (no green cones) | #3A3F4E | 0.021 |
| Tritanopia (no blue cones) | #244747 | 0.023 |
| Achromatopsia (no color) | #414141 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F444E
#2F444E
oklch(37.3% 0.031 229)
- #4F3C32
#4F3C32
oklch(37.4% 0.032 49.1)
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 #2F444E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.013
- Dark Grey Blue #29465B ΔE 0.022
- Charcoal Grey #3C4142 ΔE 0.025
- Onyx #343A40 ΔE 0.034
- Dark Slate Gray #2F4F4F ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.038
- Dark Teal #014D4E ΔE 0.042
- Midnight Green #073B4C ΔE 0.052
Use #2F444E 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.