#17445A
Closest named color: Dark Grey Blue (#29465B). oklch(36.7% 0.061 233.3), rgb(23, 68, 90).
Aa
White text reads best on this color (10.44:1).
About this color
#17445A is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.061 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.020 away. White text reads best on it, at 10.44:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.01:1 |
| White text | 10.44:1 |
Values
| HEX | #17445A |
| RGB | rgb(23, 68, 90) |
| HSL | hsl(200, 59%, 22%) |
| OKLCH | oklch(36.7% 0.061 233.3) |
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 #17445A | 10.44:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #17445A | 2.01:1 | Fails | Lc 9.9 | Not readable |
| #17445A text on white | 10.44:1 | AAA | Lc 94.0 | Preferred for body text |
| #17445A text on black | 2.01:1 | Fails | Lc -8.5 | 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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#C9DCE8
oklch(88.4% 0.026 235.4)
-
Step 300
300
#A4C6DA
oklch(80.8% 0.046 233.9)
-
Step 400
400
#71A9C8
oklch(70.8% 0.074 233.5)
-
Step 500
500
#4893B9
oklch(63.1% 0.094 233)
-
Step 600
600
#247DA5
oklch(55.7% 0.102 232.7)
-
Step 700
700
#14698E
oklch(49.1% 0.095 233.4)
-
Step 800
800
#155673
oklch(42.8% 0.079 232.7)
-
Step 900
900 (this color)
#17445A
oklch(36.7% 0.061 233.3)
-
Step 950
950
#112A36
oklch(27.1% 0.038 231.3)
#17445A 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) | #39435B | 0.039 |
| Deuteranopia (no green cones) | #303D5A | 0.033 |
| Tritanopia (no blue cones) | #004A4B | 0.040 |
| Achromatopsia (no color) | #404040 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17445A
#17445A
oklch(36.7% 0.061 233.3)
- #58351E
#58351E
oklch(36.6% 0.062 53)
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 #17445A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.020
- Charcoal #264653 ΔE 0.021
- Dark Blue Grey #1F3B4D ΔE 0.032
- Midnight Green #073B4C ΔE 0.038
- Dark Teal #014D4E ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.048
- Onyx #343A40 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.053
Use #17445A 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.