#172345
Closest named color: Oxford Blue (#1B263B). oklch(26.5% 0.066 267.2), rgb(23, 35, 69).
Aa
White text reads best on this color (15.40:1).
About this color
#172345 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.066 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.024 away. White text reads best on it, at 15.40:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.40:1 |
Values
| HEX | #172345 |
| RGB | rgb(23, 35, 69) |
| HSL | hsl(224, 50%, 18%) |
| OKLCH | oklch(26.5% 0.066 267.2) |
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 #172345 | 15.40:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #172345 | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #172345 text on white | 15.40:1 | AAA | Lc 102.2 | Preferred for body text |
| #172345 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F7
oklch(88.5% 0.044 266.9)
-
Step 300
300
#AAC0F4
oklch(80.9% 0.078 266.8)
-
Step 400
400
#7E9DEE
oklch(70.6% 0.124 267.3)
-
Step 500
500
#5F82E9
oklch(63% 0.16 267.6)
-
Step 600
600
#4669D7
oklch(55.5% 0.173 267.3)
-
Step 700
700
#3857BA
oklch(49% 0.16 267.2)
-
Step 800
800
#2F4897
oklch(42.8% 0.133 267.3)
-
Step 900
900
#293D78
oklch(37.7% 0.104 267.2)
-
Step 950
950 (this color)
#172345
oklch(26.5% 0.066 267.2)
#172345 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) | #142746 | 0.013 |
| Deuteranopia (no green cones) | #0D2344 | 0.012 |
| Tritanopia (no blue cones) | #002B30 | 0.059 |
| Achromatopsia (no color) | #252525 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172345
#172345
oklch(26.5% 0.066 267.2)
- #312300
#312300
oklch(26.6% 0.054 86.2)
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 #172345, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.024
- Dark #1B2431 ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.050
- Marine #042E60 ΔE 0.056
- Jet #212529 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.058
- Gunmetal #293241 ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.063
Use #172345 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.