#172447
Closest named color: Oxford Blue (#1B263B). oklch(26.9% 0.068 266.6), rgb(23, 36, 71).
Aa
White text reads best on this color (15.21:1).
About this color
#172447 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.068 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.025 away. White text reads best on it, at 15.21:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.37:1 |
| White text | 15.21:1 |
Values
| HEX | #172447 |
| RGB | rgb(23, 36, 71) |
| HSL | hsl(224, 51%, 18%) |
| OKLCH | oklch(26.9% 0.068 266.6) |
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 #172447 | 15.21:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #172447 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #172447 text on white | 15.21:1 | AAA | Lc 102.0 | Preferred for body text |
| #172447 text on black | 1.37:1 | 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
#CCD9F7
oklch(88.5% 0.044 266.9)
-
Step 300
300
#A9C0F5
oklch(80.9% 0.079 266.4)
-
Step 400
400
#7C9DF0
oklch(70.6% 0.128 266.7)
-
Step 500
500
#5C82EB
oklch(63% 0.163 266.8)
-
Step 600
600
#4369DA
oklch(55.6% 0.178 266.6)
-
Step 700
700
#3557BD
oklch(49.1% 0.165 266.4)
-
Step 800
800
#2C4899
oklch(42.8% 0.137 266.3)
-
Step 900
900
#273D7A
oklch(37.7% 0.107 266.4)
-
Step 950
950 (this color)
#172447
oklch(26.9% 0.068 266.6)
#172447 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) | #142848 | 0.013 |
| Deuteranopia (no green cones) | #0D2446 | 0.012 |
| Tritanopia (no blue cones) | #002C32 | 0.058 |
| Achromatopsia (no color) | #262626 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172447
#172447
oklch(26.9% 0.068 266.6)
- #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 #172447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.025
- Dark #1B2431 ΔE 0.042
- Space Cadet #2B2D42 ΔE 0.048
- Marine #042E60 ΔE 0.051
- Jet #212529 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.059
- Gunmetal #293241 ΔE 0.060
- Rich Black #0D1B2A ΔE 0.062
Use #172447 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.