#172152
Closest named color: Marine (#042E60). oklch(27.1% 0.09 270.6), rgb(23, 33, 82).
Aa
White text reads best on this color (15.26:1).
About this color
#172152 is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.090 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.044 away. White text reads best on it, at 15.26:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.37:1 |
| White text | 15.26:1 |
Values
| HEX | #172152 |
| RGB | rgb(23, 33, 82) |
| HSL | hsl(230, 56%, 21%) |
| OKLCH | oklch(27.1% 0.09 270.6) |
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 #172152 | 15.26:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #172152 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #172152 text on white | 15.26:1 | AAA | Lc 101.9 | Preferred for body text |
| #172152 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CBD8FF
oklch(88.5% 0.056 270.7)
-
Step 300
300
#A9BEFF
oklch(80.9% 0.095 270.4)
-
Step 400
400
#7D99FF
oklch(70.7% 0.152 270.5)
-
Step 500
500
#5E7BFF
oklch(63.1% 0.198 270.4)
-
Step 600
600
#455AFB
oklch(55.6% 0.238 270.5)
-
Step 700
700
#3848DB
oklch(49.1% 0.221 270.6)
-
Step 800
800
#2E3DB1
oklch(42.8% 0.183 270.6)
-
Step 900
900
#27368C
oklch(37.7% 0.143 270.4)
-
Step 950
950 (this color)
#172152
oklch(27.1% 0.09 270.6)
#172152 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) | #002854 | 0.027 |
| Deuteranopia (no green cones) | #002351 | 0.023 |
| Tritanopia (no blue cones) | #002D35 | 0.076 |
| Achromatopsia (no color) | #252525 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172152
#172152
oklch(27.1% 0.09 270.6)
- #312500
#312500
oklch(27.1% 0.055 90.3)
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 #172152, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.053
- Midnight Blue #191970 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.063
- Navy Blue #001146 ΔE 0.063
- Dark #1B2431 ΔE 0.065
Use #172152 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.