#2A3443
Closest named color: Gunmetal (#293241). oklch(32.2% 0.03 258.3), rgb(42, 52, 67).
Aa
White text reads best on this color (12.56:1).
About this color
#2A3443 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.030 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.007 away. White text reads best on it, at 12.56:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.030) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.67:1 |
| White text | 12.56:1 |
Values
| HEX | #2A3443 |
| RGB | rgb(42, 52, 67) |
| HSL | hsl(216, 23%, 21%) |
| OKLCH | oklch(32.2% 0.03 258.3) |
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 #2A3443 | 12.56:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #2A3443 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #2A3443 text on white | 12.56:1 | AAA | Lc 98.5 | Preferred for body text |
| #2A3443 text on black | 1.67:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B3C2D8
oklch(81% 0.035 257.9)
-
Step 400
400
#8BA2C5
oklch(70.7% 0.058 258.7)
-
Step 500
500
#6E8BB6
oklch(63.1% 0.073 258.1)
-
Step 600
600
#5674A2
oklch(55.5% 0.08 258.7)
-
Step 700
700
#46628A
oklch(49.2% 0.073 257.3)
-
Step 800
800
#3A5070
oklch(42.8% 0.06 257.7)
-
Step 900
900
#32425B
oklch(37.7% 0.048 259.1)
-
Step 950
950 (this color)
#2A3443
oklch(32.2% 0.03 258.3)
#2A3443 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) | #2F3544 | 0.009 |
| Deuteranopia (no green cones) | #2C3243 | 0.007 |
| Tritanopia (no blue cones) | #233739 | 0.026 |
| Achromatopsia (no color) | #333333 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A3443
#2A3443
oklch(32.2% 0.03 258.3)
- #3C3222
#3C3222
oklch(32.3% 0.03 79.1)
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 #2A3443, 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 0.023
- Dark Blue Grey #1F3B4D ΔE 0.027
- Onyx #343A40 ΔE 0.029
- Midnight Green #073B4C ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.055
Use #2A3443 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.