#172952
Closest named color: Marine (#042E60). oklch(29% 0.078 264.3), rgb(23, 41, 82).
Aa
White text reads best on this color (14.23:1).
About this color
#172952 is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.078 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.029 away. White text reads best on it, at 14.23:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.47:1 |
| White text | 14.23:1 |
Values
| HEX | #172952 |
| RGB | rgb(23, 41, 82) |
| HSL | hsl(222, 56%, 21%) |
| OKLCH | oklch(29% 0.078 264.3) |
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 #172952 | 14.23:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #172952 | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #172952 text on white | 14.23:1 | AAA | Lc 100.8 | Preferred for body text |
| #172952 text on black | 1.47:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFC
oklch(88.6% 0.051 263.2)
-
Step 300
300
#A2C0FD
oklch(80.8% 0.093 264.1)
-
Step 400
400
#719DFD
oklch(70.7% 0.149 264.3)
-
Step 500
500
#4D81FB
oklch(63.1% 0.19 264.3)
-
Step 600
600
#3267EA
oklch(55.7% 0.206 264.1)
-
Step 700
700
#2654CB
oklch(49.1% 0.192 264.3)
-
Step 800
800
#2046A4
oklch(42.7% 0.158 264.1)
-
Step 900
900
#1F3C82
oklch(37.7% 0.123 264.3)
-
Step 950
950 (this color)
#172952
oklch(29% 0.078 264.3)
#172952 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) | #152E54 | 0.015 |
| Deuteranopia (no green cones) | #0A2851 | 0.014 |
| Tritanopia (no blue cones) | #003239 | 0.064 |
| Achromatopsia (no color) | #2B2B2B | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172952
#172952
oklch(29% 0.078 264.3)
- #392800
#392800
oklch(28.9% 0.059 83.9)
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 #172952, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.042
- Space Cadet #2B2D42 ΔE 0.045
- Gunmetal #293241 ΔE 0.055
- Marine Blue #01386A ΔE 0.057
- Dark #1B2431 ΔE 0.060
- Midnight Green #073B4C ΔE 0.062
Use #172952 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.