#303340
Closest named color: Gunmetal (#293241). oklch(32.4% 0.023 274.8), rgb(48, 51, 64).
Aa
White text reads best on this color (12.55:1).
About this color
#303340 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.012 away. White text reads best on it, at 12.55:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.67:1 |
| White text | 12.55:1 |
Values
| HEX | #303340 |
| RGB | rgb(48, 51, 64) |
| HSL | hsl(229, 14%, 22%) |
| OKLCH | oklch(32.4% 0.023 274.8) |
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 #303340 | 12.55:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #303340 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #303340 text on white | 12.55:1 | AAA | Lc 98.5 | Preferred for body text |
| #303340 text on black | 1.67:1 | 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 900.
-
Step 50
50
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9EAED
oklch(93.7% 0.004 271.4)
-
Step 200
200
#D7D9E0
oklch(88.6% 0.01 273.3)
-
Step 300
300
#BDC0CC
oklch(80.9% 0.017 274.8)
-
Step 400
400
#9BA0B3
oklch(70.8% 0.028 273.9)
-
Step 500
500
#8388A0
oklch(63.1% 0.036 276)
-
Step 600
600
#6C728B
oklch(55.6% 0.039 274.5)
-
Step 700
700
#5A5F76
oklch(49% 0.037 275.3)
-
Step 800
800
#4A4E60
oklch(42.7% 0.03 275.2)
-
Step 900
900 (this color)
#303340
oklch(32.4% 0.023 274.8)
-
Step 950
950
#24262E
oklch(27% 0.015 274.3)
#303340 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) | #2F3441 | 0.003 |
| Deuteranopia (no green cones) | #2E3340 | 0.003 |
| Tritanopia (no blue cones) | #2C3537 | 0.021 |
| Achromatopsia (no color) | #333333 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #303340
#303340
oklch(32.4% 0.023 274.8)
- #373426
#373426
oklch(32.4% 0.024 97.4)
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 #303340, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.012
- Space Cadet #2B2D42 ΔE 0.024
- Onyx #343A40 ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.046
- Midnight Green #073B4C ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.058
Use #303340 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.