#182748
Closest named color: Oxford Blue (#1B263B). oklch(27.8% 0.064 264.2), rgb(24, 39, 72).
Aa
White text reads best on this color (14.76:1).
About this color
#182748 is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.064 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.024 away. White text reads best on it, at 14.76:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.42:1 |
| White text | 14.76:1 |
Values
| HEX | #182748 |
| RGB | rgb(24, 39, 72) |
| HSL | hsl(221, 50%, 19%) |
| OKLCH | oklch(27.8% 0.064 264.2) |
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 #182748 | 14.76:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #182748 | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #182748 text on white | 14.76:1 | AAA | Lc 101.5 | Preferred for body text |
| #182748 text on black | 1.42:1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF6
oklch(88.6% 0.042 263)
-
Step 300
300
#A8C1F3
oklch(81% 0.076 264)
-
Step 400
400
#7A9FED
oklch(70.8% 0.122 264.2)
-
Step 500
500
#5885E7
oklch(63.2% 0.156 263.9)
-
Step 600
600
#3F6CD5
oklch(55.6% 0.169 264.2)
-
Step 700
700
#3159B9
oklch(49% 0.159 264.3)
-
Step 800
800
#294A95
oklch(42.8% 0.129 263.9)
-
Step 900
900
#253E77
oklch(37.6% 0.102 264.3)
-
Step 950
950 (this color)
#182748
oklch(27.8% 0.064 264.2)
#182748 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) | #192A49 | 0.010 |
| Deuteranopia (no green cones) | #122647 | 0.009 |
| Tritanopia (no blue cones) | #002E34 | 0.055 |
| Achromatopsia (no color) | #282828 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182748
#182748
oklch(27.8% 0.064 264.2)
- #362600
#362600
oklch(28% 0.057 84.4)
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 #182748, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.040
- Dark #1B2431 ΔE 0.042
- Marine #042E60 ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.050
- Gunmetal #293241 ΔE 0.051
- Jet #212529 ΔE 0.058
- Midnight Green #073B4C ΔE 0.065
Use #182748 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.