#2A3542
Closest named color: Gunmetal (#293241). oklch(32.5% 0.028 252.9), rgb(42, 53, 66).
Aa
White text reads best on this color (12.45:1).
About this color
#2A3542 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.010 away. White text reads best on it, at 12.45:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.68:1 |
| White text | 12.45:1 |
Values
| HEX | #2A3542 |
| RGB | rgb(42, 53, 66) |
| HSL | hsl(213, 22%, 21%) |
| OKLCH | oklch(32.5% 0.028 252.9) |
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 #2A3542 | 12.45:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #2A3542 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #2A3542 text on white | 12.45:1 | AAA | Lc 98.3 | Preferred for body text |
| #2A3542 text on black | 1.68:1 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE1
oklch(88.6% 0.012 252.1)
-
Step 300
300
#B7C2CE
oklch(80.9% 0.021 250.4)
-
Step 400
400
#92A2B5
oklch(70.6% 0.033 252.8)
-
Step 500
500
#788BA3
oklch(63% 0.042 254.4)
-
Step 600
600
#60758E
oklch(55.5% 0.046 253)
-
Step 700
700
#506279
oklch(49% 0.043 254.7)
-
Step 800
800
#415062
oklch(42.6% 0.036 253.2)
-
Step 900
900 (this color)
#2A3542
oklch(32.5% 0.028 252.9)
-
Step 950
950
#20272F
oklch(26.9% 0.018 251.9)
#2A3542 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) | #303543 | 0.010 |
| Deuteranopia (no green cones) | #2D3342 | 0.008 |
| Tritanopia (no blue cones) | #233839 | 0.024 |
| Achromatopsia (no color) | #343434 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A3542
#2A3542
oklch(32.5% 0.028 252.9)
- #3D3224
#3D3224
oklch(32.5% 0.028 73.3)
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 #2A3542, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.010
- Onyx #343A40 ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.027
- Midnight Green #073B4C ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.040
- Charcoal Grey #3C4142 ΔE 0.052
- Charcoal #264653 ΔE 0.056
Use #2A3542 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.