#172249
Closest named color: Oxford Blue (#1B263B). oklch(26.6% 0.074 269.1), rgb(23, 34, 73).
Aa
White text reads best on this color (15.42:1).
About this color
#172249 is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.074 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.032 away. White text reads best on it, at 15.42:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.42:1 |
Values
| HEX | #172249 |
| RGB | rgb(23, 34, 73) |
| HSL | hsl(227, 52%, 19%) |
| OKLCH | oklch(26.6% 0.074 269.1) |
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 #172249 | 15.42:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #172249 | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #172249 text on white | 15.42:1 | AAA | Lc 102.2 | Preferred for body text |
| #172249 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD9FA
oklch(88.6% 0.048 268.4)
-
Step 300
300
#A9BFFA
oklch(80.9% 0.087 268.6)
-
Step 400
400
#7D9BF8
oklch(70.7% 0.141 269.1)
-
Step 500
500
#5E7FF4
oklch(63.1% 0.178 269)
-
Step 600
600
#4765E3
oklch(55.6% 0.194 269.1)
-
Step 700
700
#3953C5
oklch(49.2% 0.18 269)
-
Step 800
800
#2F44A0
oklch(42.7% 0.151 269.3)
-
Step 900
900
#293B7F
oklch(37.8% 0.117 269)
-
Step 950
950 (this color)
#172249
oklch(26.6% 0.074 269.1)
#172249 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) | #0E274A | 0.017 |
| Deuteranopia (no green cones) | #062248 | 0.019 |
| Tritanopia (no blue cones) | #002B32 | 0.063 |
| Achromatopsia (no color) | #252525 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172249
#172249
oklch(26.6% 0.074 269.1)
- #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 #172249, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.032
- Dark #1B2431 ΔE 0.048
- Marine #042E60 ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.062
- Navy Blue #001146 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.064
- Prussian Blue #1D3557 ΔE 0.064
Use #172249 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.