#174D5F
Closest named color: Dark Grey Blue (#29465B). oklch(39.4% 0.063 224.2), rgb(23, 77, 95).
Aa
White text reads best on this color (9.27:1).
About this color
#174D5F is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.063 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.024 away. White text reads best on it, at 9.27:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #174D5F |
| RGB | rgb(23, 77, 95) |
| HSL | hsl(195, 61%, 23%) |
| OKLCH | oklch(39.4% 0.063 224.2) |
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 #174D5F | 9.27:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #174D5F | 2.26:1 | Fails | Lc 12.8 | Not readable |
| #174D5F text on white | 9.27:1 | AAA | Lc 91.2 | Preferred for body text |
| #174D5F text on black | 2.26:1 | Fails | Lc -11.2 | 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
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE6
oklch(88.5% 0.026 225.3)
-
Step 300
300
#A1C8D7
oklch(81% 0.046 223.3)
-
Step 400
400
#6AABC4
oklch(70.7% 0.076 224.6)
-
Step 500
500
#3B96B5
oklch(63.2% 0.096 224.1)
-
Step 600
600
#0080A1
oklch(55.7% 0.105 224.1)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900 (this color)
#174D5F
oklch(39.4% 0.063 224.2)
-
Step 950
950
#0D2B35
oklch(27.2% 0.04 223.2)
#174D5F 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) | #434B60 | 0.049 |
| Deuteranopia (no green cones) | #39445F | 0.043 |
| Tritanopia (no blue cones) | #005253 | 0.032 |
| Achromatopsia (no color) | #474747 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174D5F
#174D5F
oklch(39.4% 0.063 224.2)
- #623B29
#623B29
oklch(39.5% 0.062 45.3)
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 #174D5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.024
- Charcoal #264653 ΔE 0.027
- Deep Teal #00555A ΔE 0.031
- Dark Teal #014D4E ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.036
- Dark Blue Green #005249 ΔE 0.048
- Petrol #005F6A ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.058
Use #174D5F 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.