#2D3944
Closest named color: Onyx (#343A40). oklch(33.8% 0.025 246.3), rgb(45, 57, 68).
Aa
White text reads best on this color (11.79:1).
About this color
#2D3944 is a dark close to neutral grey. In OKLCH its lightness is 34%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.014 away. White text reads best on it, at 11.79:1.
| Hue family | Neutrals |
| Lightness | dark (34%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.78:1 |
| White text | 11.79:1 |
Values
| HEX | #2D3944 |
| RGB | rgb(45, 57, 68) |
| HSL | hsl(209, 20%, 22%) |
| OKLCH | oklch(33.8% 0.025 246.3) |
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 #2D3944 | 11.79:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #2D3944 | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #2D3944 text on white | 11.79:1 | AAA | Lc 97.1 | Preferred for body text |
| #2D3944 text on black | 1.78:1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D4DAE0
oklch(88.6% 0.011 247.9)
-
Step 300
300
#B7C2CC
oklch(80.9% 0.019 245.4)
-
Step 400
400
#92A3B3
oklch(70.7% 0.03 246.6)
-
Step 500
500
#778CA0
oklch(63.1% 0.039 247.1)
-
Step 600
600
#5F768B
oklch(55.5% 0.043 246.2)
-
Step 700
700
#4F6376
oklch(49.1% 0.039 247.3)
-
Step 800
800
#415160
oklch(42.7% 0.032 246.9)
-
Step 900
900 (this color)
#2D3944
oklch(33.8% 0.025 246.3)
-
Step 950
950
#20272E
oklch(26.9% 0.016 248.4)
#2D3944 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) | #353945 | 0.013 |
| Deuteranopia (no green cones) | #323744 | 0.010 |
| Tritanopia (no blue cones) | #263C3D | 0.021 |
| Achromatopsia (no color) | #383838 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D3944
#2D3944
oklch(33.8% 0.025 246.3)
- #41352A
#41352A
oklch(33.9% 0.025 64.3)
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 #2D3944, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.014
- Dark Blue Grey #1F3B4D ΔE 0.022
- Gunmetal #293241 ΔE 0.024
- Midnight Green #073B4C ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.040
- Charcoal #264653 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.045
Use #2D3944 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.