#183141
Closest named color: Gunmetal (#293241). oklch(30.1% 0.043 238.5), rgb(24, 49, 65).
Aa
White text reads best on this color (13.50:1).
About this color
#183141 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.043 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.024 away. White text reads best on it, at 13.50:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.55:1 |
| White text | 13.50:1 |
Values
| HEX | #183141 |
| RGB | rgb(24, 49, 65) |
| HSL | hsl(203, 46%, 17%) |
| OKLCH | oklch(30.1% 0.043 238.5) |
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 #183141 | 13.50:1 | AAA | Lc -103.0 | Preferred for body text |
| Black text on #183141 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #183141 text on white | 13.50:1 | AAA | Lc 99.9 | Preferred for body text |
| #183141 text on black | 1.55:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1EBF3
oklch(93.5% 0.015 241.8)
-
Step 200
200
#C9DCEA
oklch(88.5% 0.028 239.7)
-
Step 300
300
#A3C6DE
oklch(80.9% 0.051 238.2)
-
Step 400
400
#70A8CD
oklch(70.7% 0.08 238.4)
-
Step 500
500
#4692C1
oklch(63.2% 0.103 238.5)
-
Step 600
600
#207BAD
oklch(55.5% 0.112 238.6)
-
Step 700
700
#106895
oklch(49.2% 0.104 238.4)
-
Step 800
800
#135579
oklch(42.8% 0.087 238.4)
-
Step 900
900
#194661
oklch(37.7% 0.067 238.6)
-
Step 950
950 (this color)
#183141
oklch(30.1% 0.043 238.5)
#183141 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) | #2A3142 | 0.025 |
| Deuteranopia (no green cones) | #242D41 | 0.020 |
| Tritanopia (no blue cones) | #003536 | 0.034 |
| Achromatopsia (no color) | #2E2E2E | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #183141
#183141
oklch(30.1% 0.043 238.5)
- #3E2918
#3E2918
oklch(30.2% 0.042 59.3)
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 #183141, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.029
- Midnight Green #073B4C ΔE 0.034
- Oxford Blue #1B263B ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.041
- Dark #1B2431 ΔE 0.047
- Jet #212529 ΔE 0.051
Use #183141 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.