#2F3040
Closest named color: Gunmetal (#293241). oklch(31.5% 0.029 281.8), rgb(47, 48, 64).
Aa
White text reads best on this color (12.98:1).
About this color
#2F3040 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.011 away. White text reads best on it, at 12.98:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.61:1 |
| White text | 12.98:1 |
Values
| HEX | #2F3040 |
| RGB | rgb(47, 48, 64) |
| HSL | hsl(236, 15%, 22%) |
| OKLCH | oklch(31.5% 0.029 281.8) |
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 #2F3040 | 12.98:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #2F3040 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #2F3040 text on white | 12.98:1 | AAA | Lc 99.2 | Preferred for body text |
| #2F3040 text on black | 1.61:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D7D8E6
oklch(88.6% 0.019 282.7)
-
Step 300
300
#BCBED7
oklch(80.8% 0.035 282)
-
Step 400
400
#9B9DC2
oklch(70.7% 0.054 282.5)
-
Step 500
500
#8285B3
oklch(63.2% 0.069 281.3)
-
Step 600
600
#6C6E9F
oklch(55.6% 0.076 281.8)
-
Step 700
700
#5A5C88
oklch(49.2% 0.07 281.5)
-
Step 800
800
#4A4B6E
oklch(42.7% 0.058 282.4)
-
Step 900
900
#3D3F59
oklch(37.7% 0.044 280.6)
-
Step 950
950 (this color)
#2F3040
oklch(31.5% 0.029 281.8)
#2F3040 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) | #2C3241 | 0.007 |
| Deuteranopia (no green cones) | #2B3140 | 0.007 |
| Tritanopia (no blue cones) | #2B3335 | 0.026 |
| Achromatopsia (no color) | #313131 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F3040
#2F3040
oklch(31.5% 0.029 281.8)
- #343221
#343221
oklch(31.4% 0.029 102.2)
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 #2F3040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.011
- Space Cadet #2B2D42 ΔE 0.014
- Onyx #343A40 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.049
- Midnight Green #073B4C ΔE 0.051
- Jet #212529 ΔE 0.057
Use #2F3040 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.