#2D3D49
Closest named color: Onyx (#343A40). oklch(35.1% 0.03 241.1), rgb(45, 61, 73).
Aa
White text reads best on this color (11.19:1).
About this color
#2D3D49 is a dark close to neutral grey. In OKLCH its lightness is 35%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.018 away. White text reads best on it, at 11.19:1.
| Hue family | Neutrals |
| Lightness | dark (35%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.87:1 |
| White text | 11.19:1 |
Values
| HEX | #2D3D49 |
| RGB | rgb(45, 61, 73) |
| HSL | hsl(206, 24%, 23%) |
| OKLCH | oklch(35.1% 0.03 241.1) |
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 #2D3D49 | 11.19:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #2D3D49 | 1.87:1 | Fails | Lc 8.0 | Not readable |
| #2D3D49 text on white | 11.19:1 | AAA | Lc 95.9 | Preferred for body text |
| #2D3D49 text on black | 1.87:1 | 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
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE1
oklch(88.4% 0.013 244.3)
-
Step 300
300
#B5C3CE
oklch(81% 0.022 241.4)
-
Step 400
400
#8EA4B5
oklch(70.7% 0.035 241.3)
-
Step 500
500
#718DA3
oklch(63% 0.046 242.1)
-
Step 600
600
#59778E
oklch(55.5% 0.05 241.8)
-
Step 700
700
#496479
oklch(49% 0.047 242.2)
-
Step 800
800
#3C5262
oklch(42.7% 0.038 240.3)
-
Step 900
900 (this color)
#2D3D49
oklch(35.1% 0.03 241.1)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#2D3D49 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) | #383D4A | 0.017 |
| Deuteranopia (no green cones) | #343A49 | 0.014 |
| Tritanopia (no blue cones) | #244041 | 0.023 |
| Achromatopsia (no color) | #3B3B3B | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D3D49
#2D3D49
oklch(35.1% 0.03 241.1)
- #46372B
#46372B
oklch(35% 0.029 60.3)
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 #2D3D49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.018
- Dark Blue Grey #1F3B4D ΔE 0.021
- Charcoal #264653 ΔE 0.030
- Charcoal Grey #3C4142 ΔE 0.031
- Dark Grey Blue #29465B ΔE 0.036
- Gunmetal #293241 ΔE 0.037
- Midnight Green #073B4C ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.047
Use #2D3D49 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.