#182248
Closest named color: Oxford Blue (#1B263B). oklch(26.6% 0.072 269.9), rgb(24, 34, 72).
Aa
White text reads best on this color (15.42:1).
About this color
#182248 is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.072 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.030 away. White text reads best on it, at 15.42:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.42:1 |
Values
| HEX | #182248 |
| RGB | rgb(24, 34, 72) |
| HSL | hsl(228, 50%, 19%) |
| OKLCH | oklch(26.6% 0.072 269.9) |
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 #182248 | 15.42:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #182248 | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #182248 text on white | 15.42:1 | AAA | Lc 102.2 | Preferred for body text |
| #182248 text on black | 1.36:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CDD8F9
oklch(88.4% 0.047 270.8)
-
Step 300
300
#ABBFF8
oklch(81% 0.084 269.5)
-
Step 400
400
#7F9BF5
oklch(70.7% 0.136 269.6)
-
Step 500
500
#617FF1
oklch(63.1% 0.174 269.8)
-
Step 600
600
#4A65E0
oklch(55.6% 0.189 269.8)
-
Step 700
700
#3C53C3
oklch(49.1% 0.176 269.9)
-
Step 800
800
#31459D
oklch(42.7% 0.145 269.6)
-
Step 900
900
#2B3B7D
oklch(37.7% 0.113 270)
-
Step 950
950 (this color)
#182248
oklch(26.6% 0.072 269.9)
#182248 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) | #0F2749 | 0.017 |
| Deuteranopia (no green cones) | #082247 | 0.019 |
| Tritanopia (no blue cones) | #002B31 | 0.064 |
| Achromatopsia (no color) | #242424 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182248
#182248
oklch(26.6% 0.072 269.9)
- #302400
#302400
oklch(26.7% 0.055 89.9)
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 #182248, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.030
- Dark #1B2431 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.053
- Marine #042E60 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.062
- Dark Indigo #1F0954 ΔE 0.063
- Jet #212529 ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.064
Use #182248 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.