#174A50
Closest named color: Dark Teal (#014D4E). oklch(37.8% 0.054 206.1), rgb(23, 74, 80).
Aa
White text reads best on this color (9.85:1).
About this color
#174A50 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.054 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.015 away. White text reads best on it, at 9.85:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.13:1 |
| White text | 9.85:1 |
Values
| HEX | #174A50 |
| RGB | rgb(23, 74, 80) |
| HSL | hsl(186, 55%, 20%) |
| OKLCH | oklch(37.8% 0.054 206.1) |
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 #174A50 | 9.85:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #174A50 | 2.13:1 | Fails | Lc 11.3 | Not readable |
| #174A50 text on white | 9.85:1 | AAA | Lc 92.6 | Preferred for body text |
| #174A50 text on black | 2.13:1 | Fails | Lc -9.8 | 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
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CD
oklch(81% 0.041 204.3)
-
Step 400
400
#6FACB4
oklch(70.6% 0.064 206.3)
-
Step 500
500
#4398A2
oklch(63.2% 0.083 205.8)
-
Step 600
600
#18828D
oklch(55.6% 0.09 205.9)
-
Step 700
700
#036E78
oklch(49.2% 0.083 205.9)
-
Step 800
800
#0D5962
oklch(42.6% 0.069 207.4)
-
Step 900
900 (this color)
#174A50
oklch(37.8% 0.054 206.1)
-
Step 950
950
#0F2B2F
oklch(26.9% 0.034 207.9)
#174A50 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) | #434750 | 0.052 |
| Deuteranopia (no green cones) | #3B4150 | 0.048 |
| Tritanopia (no blue cones) | #004D4C | 0.017 |
| Achromatopsia (no color) | #434343 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174A50
#174A50
oklch(37.8% 0.054 206.1)
- #5B3633
#5B3633
oklch(37.7% 0.054 24.9)
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 #174A50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.015
- Charcoal #264653 ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.031
- Dark Grey Blue #29465B ΔE 0.032
- Dark Blue Green #005249 ΔE 0.034
- Deep Teal #00555A ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.049
Use #174A50 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.