#243642
Closest named color: Gunmetal (#293241). oklch(32.3% 0.032 238.2), rgb(36, 54, 66).
Aa
White text reads best on this color (12.48:1).
About this color
#243642 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.032 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.014 away. White text reads best on it, at 12.48:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.68:1 |
| White text | 12.48:1 |
Values
| HEX | #243642 |
| RGB | rgb(36, 54, 66) |
| HSL | hsl(204, 29%, 20%) |
| OKLCH | oklch(32.3% 0.032 238.2) |
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 #243642 | 12.48:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #243642 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #243642 text on white | 12.48:1 | AAA | Lc 98.4 | Preferred for body text |
| #243642 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 950.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDBE6
oklch(88.4% 0.021 241.4)
-
Step 300
300
#ABC5D6
oklch(80.9% 0.037 236.6)
-
Step 400
400
#7EA7C2
oklch(70.8% 0.06 237.6)
-
Step 500
500
#5B90B3
oklch(63% 0.077 238.6)
-
Step 600
600
#407A9F
oklch(55.6% 0.084 238.7)
-
Step 700
700
#316788
oklch(49.2% 0.078 238)
-
Step 800
800
#2A546E
oklch(42.7% 0.064 237.9)
-
Step 900
900
#274559
oklch(37.6% 0.05 239.2)
-
Step 950
950 (this color)
#243642
oklch(32.3% 0.032 238.2)
#243642 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) | #313643 | 0.020 |
| Deuteranopia (no green cones) | #2D3242 | 0.018 |
| Tritanopia (no blue cones) | #19393A | 0.025 |
| Achromatopsia (no color) | #343434 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #243642
#243642
oklch(32.3% 0.032 238.2)
- #403023
#403023
oklch(32.4% 0.032 60.4)
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 #243642, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.014
- Dark Blue Grey #1F3B4D ΔE 0.022
- Midnight Green #073B4C ΔE 0.029
- Onyx #343A40 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.040
- Charcoal #264653 ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.055
Use #243642 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.