#174D65
Closest named color: Dark Grey Blue (#29465B). oklch(39.7% 0.068 231.5), rgb(23, 77, 101).
Aa
White text reads best on this color (9.18:1).
About this color
#174D65 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.068 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.026 away. White text reads best on it, at 9.18:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.28:1 |
| White text | 9.18:1 |
Values
| HEX | #174D65 |
| RGB | rgb(23, 77, 101) |
| HSL | hsl(198, 63%, 24%) |
| OKLCH | oklch(39.7% 0.068 231.5) |
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 #174D65 | 9.18:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #174D65 | 2.28:1 | Fails | Lc 13.1 | Not readable |
| #174D65 text on white | 9.18:1 | AAA | Lc 90.9 | Preferred for body text |
| #174D65 text on black | 2.28:1 | Fails | Lc -11.4 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C7DDE9
oklch(88.5% 0.029 231.5)
-
Step 300
300
#A0C7DC
oklch(80.8% 0.051 231.7)
-
Step 400
400
#69AACB
oklch(70.7% 0.082 231.7)
-
Step 500
500
#3994BD
oklch(63% 0.105 231.4)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900 (this color)
#174D65
oklch(39.7% 0.068 231.5)
-
Step 950
950
#0C2A38
oklch(27% 0.044 231.9)
#174D65 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) | #414C66 | 0.046 |
| Deuteranopia (no green cones) | #364465 | 0.040 |
| Tritanopia (no blue cones) | #005455 | 0.042 |
| Achromatopsia (no color) | #484848 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174D65
#174D65
oklch(39.7% 0.068 231.5)
- #643B22
#643B22
oklch(39.6% 0.069 51)
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 #174D65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.026
- Charcoal #264653 ΔE 0.033
- Deep Teal #00555A ΔE 0.038
- Dark Teal #014D4E ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.049
- Light Navy #155084 ΔE 0.052
- Twilight Blue #0A437A ΔE 0.054
Use #174D65 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.