#243541
Closest named color: Gunmetal (#293241). oklch(31.9% 0.031 239.7), rgb(36, 53, 65).
Aa
White text reads best on this color (12.64:1).
About this color
#243541 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.031 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.012 away. White text reads best on it, at 12.64:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.66:1 |
| White text | 12.64:1 |
Values
| HEX | #243541 |
| RGB | rgb(36, 53, 65) |
| HSL | hsl(205, 29%, 20%) |
| OKLCH | oklch(31.9% 0.031 239.7) |
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 #243541 | 12.64:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #243541 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #243541 text on white | 12.64:1 | AAA | Lc 98.6 | Preferred for body text |
| #243541 text on black | 1.66:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE5
oklch(88.5% 0.02 240.8)
-
Step 300
300
#ACC4D6
oklch(80.8% 0.036 240.4)
-
Step 400
400
#7FA6C2
oklch(70.7% 0.059 239.9)
-
Step 500
500
#5E90B2
oklch(63.1% 0.074 239.2)
-
Step 600
600
#437A9E
oklch(55.7% 0.081 239.2)
-
Step 700
700
#346687
oklch(49% 0.076 239.7)
-
Step 800
800
#2C536E
oklch(42.6% 0.063 240.7)
-
Step 900
900
#284559
oklch(37.7% 0.049 240)
-
Step 950
950 (this color)
#243541
oklch(31.9% 0.031 239.7)
#243541 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) | #303542 | 0.018 |
| Deuteranopia (no green cones) | #2C3241 | 0.015 |
| Tritanopia (no blue cones) | #193839 | 0.025 |
| Achromatopsia (no color) | #333333 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #243541
#243541
oklch(31.9% 0.031 239.7)
- #3F2F23
#3F2F23
oklch(32% 0.031 58.2)
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 #243541, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.012
- Dark Blue Grey #1F3B4D ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.028
- Midnight Green #073B4C ΔE 0.031
- Onyx #343A40 ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.057
Use #243541 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.