#174F45
Closest named color: Dark Blue Green (#005249). oklch(38.8% 0.06 178.8), rgb(23, 79, 69).
Aa
White text reads best on this color (9.37:1).
About this color
#174F45 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.060 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.012 away. White text reads best on it, at 9.37:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.24:1 |
| White text | 9.37:1 |
Values
| HEX | #174F45 |
| RGB | rgb(23, 79, 69) |
| HSL | hsl(169, 55%, 20%) |
| OKLCH | oklch(38.8% 0.06 178.8) |
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 #174F45 | 9.37:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #174F45 | 2.24:1 | Fails | Lc 12.6 | Not readable |
| #174F45 text on white | 9.37:1 | AAA | Lc 91.4 | Preferred for body text |
| #174F45 text on black | 2.24:1 | Fails | Lc -11.0 | 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 900.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C8DFD9
oklch(88.5% 0.026 178.3)
-
Step 300
300
#A2CBC1
oklch(81% 0.046 178.6)
-
Step 400
400
#6CB0A1
oklch(70.7% 0.073 178.4)
-
Step 500
500
#3E9C8A
oklch(63.2% 0.093 178.4)
-
Step 600
600
#088674
oklch(55.6% 0.1 178.7)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#035C50
oklch(42.6% 0.076 179.8)
-
Step 900
900 (this color)
#174F45
oklch(38.8% 0.06 178.8)
-
Step 950
950
#0E2D27
oklch(27.2% 0.038 178.6)
#174F45 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) | #4C4A45 | 0.064 |
| Deuteranopia (no green cones) | #434446 | 0.060 |
| Tritanopia (no blue cones) | #00504C | 0.013 |
| Achromatopsia (no color) | #464646 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174F45
#174F45
oklch(38.8% 0.06 178.8)
- #5F3644
#5F3644
oklch(38.8% 0.062 358.4)
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 #174F45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.012
- Dark Teal #014D4E ΔE 0.021
- Dark Slate Gray #2F4F4F ΔE 0.030
- Deep Teal #00555A ΔE 0.034
- Charcoal #264653 ΔE 0.046
- Evergreen #05472A ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.057
- Dark Grey Blue #29465B ΔE 0.058
Use #174F45 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.