#182C3D
Closest named color: Oxford Blue (#1B263B). oklch(28.5% 0.041 245.5), rgb(24, 44, 61).
Aa
White text reads best on this color (14.31:1).
About this color
#182C3D is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.041 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.020 away. White text reads best on it, at 14.31:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.46:1 |
| White text | 14.31:1 |
Values
| HEX | #182C3D |
| RGB | rgb(24, 44, 61) |
| HSL | hsl(208, 44%, 17%) |
| OKLCH | oklch(28.5% 0.041 245.5) |
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 #182C3D | 14.31:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #182C3D | 1.46:1 | Fails | Lc 0.0 | Not readable |
| #182C3D text on white | 14.31:1 | AAA | Lc 101.0 | Preferred for body text |
| #182C3D text on black | 1.46:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CBDBEA
oklch(88.4% 0.027 246.4)
-
Step 300
300
#A8C4DE
oklch(80.8% 0.048 246.4)
-
Step 400
400
#78A6CE
oklch(70.7% 0.077 245.4)
-
Step 500
500
#538FC1
oklch(63% 0.098 245.4)
-
Step 600
600
#3679AE
oklch(55.7% 0.107 245.4)
-
Step 700
700
#276595
oklch(49% 0.1 245.4)
-
Step 800
800
#225379
oklch(42.7% 0.082 245)
-
Step 900
900
#224562
oklch(37.8% 0.064 245.6)
-
Step 950
950 (this color)
#182C3D
oklch(28.5% 0.041 245.5)
#182C3D 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) | #252C3E | 0.019 |
| Deuteranopia (no green cones) | #20293D | 0.014 |
| Tritanopia (no blue cones) | #043032 | 0.034 |
| Achromatopsia (no color) | #2A2A2A | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182C3D
#182C3D
oklch(28.5% 0.041 245.5)
- #382613
#382613
oklch(28.5% 0.041 66.4)
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 #182C3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.020
- Dark #1B2431 ΔE 0.031
- Space Cadet #2B2D42 ΔE 0.031
- Gunmetal #293241 ΔE 0.034
- Jet #212529 ΔE 0.039
- Midnight Green #073B4C ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.055
Use #182C3D 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.