#2D313F
Closest named color: Gunmetal (#293241). oklch(31.5% 0.026 272.4), rgb(45, 49, 63).
Aa
White text reads best on this color (12.94:1).
About this color
#2D313F is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.007 away. White text reads best on it, at 12.94:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.62:1 |
| White text | 12.94:1 |
Values
| HEX | #2D313F |
| RGB | rgb(45, 49, 63) |
| HSL | hsl(227, 17%, 21%) |
| OKLCH | oklch(31.5% 0.026 272.4) |
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 #2D313F | 12.94:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #2D313F | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #2D313F text on white | 12.94:1 | AAA | Lc 99.1 | Preferred for body text |
| #2D313F text on black | 1.62:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8EAF0
oklch(93.7% 0.008 271.3)
-
Step 200
200
#D5D9E5
oklch(88.6% 0.017 271.2)
-
Step 300
300
#BAC0D5
oklch(81% 0.03 273)
-
Step 400
400
#969FC0
oklch(70.7% 0.049 273.1)
-
Step 500
500
#7C88B0
oklch(63.2% 0.062 271.6)
-
Step 600
600
#66719B
oklch(55.6% 0.067 272.8)
-
Step 700
700
#545F85
oklch(49.2% 0.063 271.5)
-
Step 800
800
#454D6C
oklch(42.6% 0.053 272.9)
-
Step 900
900
#3A4057
oklch(37.6% 0.04 273)
-
Step 950
950 (this color)
#2D313F
oklch(31.5% 0.026 272.4)
#2D313F 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) | #2D3240 | 0.003 |
| Deuteranopia (no green cones) | #2C313F | 0.002 |
| Tritanopia (no blue cones) | #293436 | 0.023 |
| Achromatopsia (no color) | #313131 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D313F
#2D313F
oklch(31.5% 0.026 272.4)
- #363123
#363123
oklch(31.4% 0.025 90.7)
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 #2D313F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.007
- Space Cadet #2B2D42 ΔE 0.017
- Onyx #343A40 ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.045
- Midnight Green #073B4C ΔE 0.047
- Oxford Blue #1B263B ΔE 0.049
- Jet #212529 ΔE 0.056
Use #2D313F 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.