#172C44
Closest named color: Oxford Blue (#1B263B). oklch(28.8% 0.052 252.9), rgb(23, 44, 68).
Aa
White text reads best on this color (14.18:1).
About this color
#172C44 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.052 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.023 away. White text reads best on it, at 14.18:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.48:1 |
| White text | 14.18:1 |
Values
| HEX | #172C44 |
| RGB | rgb(23, 44, 68) |
| HSL | hsl(212, 49%, 18%) |
| OKLCH | oklch(28.8% 0.052 252.9) |
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 #172C44 | 14.18:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #172C44 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #172C44 text on white | 14.18:1 | AAA | Lc 100.8 | Preferred for body text |
| #172C44 text on black | 1.48:1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A5C4E8
oklch(81% 0.061 252.4)
-
Step 400
400
#74A4DD
oklch(70.7% 0.099 253.3)
-
Step 500
500
#4D8CD3
oklch(63% 0.126 252.9)
-
Step 600
600
#2F75C0
oklch(55.6% 0.136 252.8)
-
Step 700
700
#2162A6
oklch(49.1% 0.127 252.8)
-
Step 800
800
#1D5087
oklch(42.7% 0.106 253)
-
Step 900
900
#1E436C
oklch(37.7% 0.082 252.9)
-
Step 950
950 (this color)
#172C44
oklch(28.8% 0.052 252.9)
#172C44 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) | #222D45 | 0.016 |
| Deuteranopia (no green cones) | #1C2944 | 0.011 |
| Tritanopia (no blue cones) | #003235 | 0.044 |
| Achromatopsia (no color) | #2B2B2B | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172C44
#172C44
oklch(28.8% 0.052 252.9)
- #3A2609
#3A2609
oklch(28.7% 0.052 72.8)
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 #172C44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.023
- Space Cadet #2B2D42 ΔE 0.030
- Gunmetal #293241 ΔE 0.035
- Dark #1B2431 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.043
- Midnight Green #073B4C ΔE 0.049
- Jet #212529 ΔE 0.050
- Marine #042E60 ΔE 0.051
Use #172C44 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.