#174D6D
Closest named color: Dark Grey Blue (#29465B). oklch(40.1% 0.077 239.3), rgb(23, 77, 109).
Aa
White text reads best on this color (9.05:1).
About this color
#174D6D is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.077 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.034 away. White text reads best on it, at 9.05:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.31:1 |
| White text | 9.05:1 |
Values
| HEX | #174D6D |
| RGB | rgb(23, 77, 109) |
| HSL | hsl(202, 65%, 26%) |
| OKLCH | oklch(40.1% 0.077 239.3) |
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 #174D6D | 9.05:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #174D6D | 2.31:1 | Fails | Lc 13.4 | Not readable |
| #174D6D text on white | 9.05:1 | AAA | Lc 90.5 | Preferred for body text |
| #174D6D text on black | 2.31:1 | Fails | Lc -11.8 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DDED
oklch(88.6% 0.032 239.4)
-
Step 300
300
#9FC6E2
oklch(80.8% 0.057 239.6)
-
Step 400
400
#67A9D4
oklch(70.7% 0.092 238.5)
-
Step 500
500
#3792C9
oklch(63.1% 0.118 239.4)
-
Step 600
600
#007BB4
oklch(55.5% 0.126 239.3)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900 (this color)
#174D6D
oklch(40.1% 0.077 239.3)
-
Step 950
950
#0B293C
oklch(26.9% 0.05 240.3)
#174D6D 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) | #3E4D6E | 0.041 |
| Deuteranopia (no green cones) | #32456C | 0.033 |
| Tritanopia (no blue cones) | #005558 | 0.052 |
| Achromatopsia (no color) | #494949 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174D6D
#174D6D
oklch(40.1% 0.077 239.3)
- #663D18
#663D18
oklch(40.2% 0.077 59.6)
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 #174D6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.037
- Light Navy #155084 ΔE 0.038
- Twilight Blue #0A437A ΔE 0.043
- Charcoal #264653 ΔE 0.044
- Deep Teal #00555A ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.056
- Dusk Blue #26538D ΔE 0.057
Use #174D6D 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.