#172448
Closest named color: Oxford Blue (#1B263B). oklch(27% 0.069 266.8), rgb(23, 36, 72).
Aa
White text reads best on this color (15.19:1).
About this color
#172448 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.069 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.027 away. White text reads best on it, at 15.19:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.19:1 |
Values
| HEX | #172448 |
| RGB | rgb(23, 36, 72) |
| HSL | hsl(224, 52%, 19%) |
| OKLCH | oklch(27% 0.069 266.8) |
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 #172448 | 15.19:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #172448 | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #172448 text on white | 15.19:1 | AAA | Lc 102.0 | Preferred for body text |
| #172448 text on black | 1.38:1 | 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300
#A9C0F7
oklch(81% 0.082 266.9)
-
Step 400
400
#7B9DF2
oklch(70.7% 0.131 266.6)
-
Step 500
500
#5B82EE
oklch(63.1% 0.168 266.7)
-
Step 600
600
#4368DC
oklch(55.5% 0.182 267)
-
Step 700
700
#3556BF
oklch(49.1% 0.169 266.8)
-
Step 800
800
#2C479B
oklch(42.7% 0.141 266.9)
-
Step 900
900
#273D7B
oklch(37.8% 0.109 266.5)
-
Step 950
950 (this color)
#172448
oklch(27% 0.069 266.8)
#172448 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) | #132849 | 0.013 |
| Deuteranopia (no green cones) | #0C2447 | 0.013 |
| Tritanopia (no blue cones) | #002C32 | 0.060 |
| Achromatopsia (no color) | #262626 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172448
#172448
oklch(27% 0.069 266.8)
- #322400
#322400
oklch(27% 0.055 86.6)
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 #172448, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.027
- Dark #1B2431 ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.048
- Marine #042E60 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.059
- Gunmetal #293241 ΔE 0.060
- Jet #212529 ΔE 0.061
- Rich Black #0D1B2A ΔE 0.064
Use #172448 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.