#2D313B
Closest named color: Gunmetal (#293241). oklch(31.3% 0.019 268.1), rgb(45, 49, 59).
Aa
White text reads best on this color (13.01:1).
About this color
#2D313B is a dark close to neutral grey. In OKLCH its lightness is 31%, its chroma 0.019. 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 13.01:1.
| Hue family | Neutrals |
| Lightness | dark (31%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.61:1 |
| White text | 13.01:1 |
Values
| HEX | #2D313B |
| RGB | rgb(45, 49, 59) |
| HSL | hsl(223, 13%, 20%) |
| OKLCH | oklch(31.3% 0.019 268.1) |
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 #2D313B | 13.01:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #2D313B | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #2D313B text on white | 13.01:1 | AAA | Lc 99.3 | Preferred for body text |
| #2D313B 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#BAC0D0
oklch(80.8% 0.023 269.4)
-
Step 400
400
#97A0B8
oklch(70.7% 0.037 269.2)
-
Step 500
500
#7E89A6
oklch(63.1% 0.046 268.8)
-
Step 600
600
#677391
oklch(55.7% 0.049 267.8)
-
Step 700
700
#55607B
oklch(49% 0.046 267.4)
-
Step 800
800
#464E64
oklch(42.6% 0.038 269.2)
-
Step 900
900
#3B4152
oklch(37.7% 0.03 269.7)
-
Step 950
950 (this color)
#2D313B
oklch(31.3% 0.019 268.1)
#2D313B 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) | #2E323B | 0.004 |
| Deuteranopia (no green cones) | #2D303B | 0.003 |
| Tritanopia (no blue cones) | #2A3334 | 0.017 |
| Achromatopsia (no color) | #313131 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D313B
#2D313B
oklch(31.3% 0.019 268.1)
- #353126
#353126
oklch(31.4% 0.02 90.4)
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 #2D313B, 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 0.022
- Onyx #343A40 ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.040
- Midnight Green #073B4C ΔE 0.049
- Oxford Blue #1B263B ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.051
- Jet #212529 ΔE 0.052
Use #2D313B 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.