#2A3343
Closest named color: Gunmetal (#293241). oklch(32% 0.031 261.8), rgb(42, 51, 67).
Aa
White text reads best on this color (12.70:1).
About this color
#2A3343 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.031 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.005 away. White text reads best on it, at 12.70:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.65:1 |
| White text | 12.70:1 |
Values
| HEX | #2A3343 |
| RGB | rgb(42, 51, 67) |
| HSL | hsl(218, 23%, 21%) |
| OKLCH | oklch(32% 0.031 261.8) |
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 #2A3343 | 12.70:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #2A3343 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #2A3343 text on white | 12.70:1 | AAA | Lc 98.8 | Preferred for body text |
| #2A3343 text on black | 1.65:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D2DAE7
oklch(88.6% 0.02 260.2)
-
Step 300
300
#B4C1D9
oklch(80.9% 0.037 262.8)
-
Step 400
400
#8CA1C6
oklch(70.6% 0.059 261.7)
-
Step 500
500
#708AB8
oklch(63.1% 0.076 261.6)
-
Step 600
600
#5873A4
oklch(55.5% 0.083 261.9)
-
Step 700
700
#48618C
oklch(49.2% 0.076 260.9)
-
Step 800
800
#3C4F72
oklch(42.8% 0.063 262.1)
-
Step 900
900
#33425C
oklch(37.8% 0.049 261.1)
-
Step 950
950 (this color)
#2A3343
oklch(32% 0.031 261.8)
#2A3343 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) | #2E3444 | 0.008 |
| Deuteranopia (no green cones) | #2B3243 | 0.004 |
| Tritanopia (no blue cones) | #233638 | 0.028 |
| Achromatopsia (no color) | #333333 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A3343
#2A3343
oklch(32% 0.031 261.8)
- #3B3120
#3B3120
oklch(31.9% 0.031 80.5)
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 #2A3343, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.005
- Space Cadet #2B2D42 ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.029
- Onyx #343A40 ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.038
- Midnight Green #073B4C ΔE 0.039
- Oxford Blue #1B263B ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.058
Use #2A3343 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.