#174C56
Closest named color: Dark Teal (#014D4E). oklch(38.7% 0.057 212.6), rgb(23, 76, 86).
Aa
White text reads best on this color (9.52:1).
About this color
#174C56 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.057 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.020 away. White text reads best on it, at 9.52:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #174C56 |
| RGB | rgb(23, 76, 86) |
| HSL | hsl(190, 58%, 21%) |
| OKLCH | oklch(38.7% 0.057 212.6) |
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 #174C56 | 9.52:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #174C56 | 2.20:1 | Fails | Lc 12.1 | Not readable |
| #174C56 text on white | 9.52:1 | AAA | Lc 91.8 | Preferred for body text |
| #174C56 text on black | 2.20:1 | Fails | Lc -10.6 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE2
oklch(88.5% 0.024 209.8)
-
Step 300
300
#A2C8D1
oklch(80.8% 0.042 213.7)
-
Step 400
400
#6CACBA
oklch(70.6% 0.069 213.1)
-
Step 500
500
#3F97A9
oklch(63.1% 0.087 213.4)
-
Step 600
600
#0D8194
oklch(55.5% 0.095 213.1)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#055966
oklch(42.7% 0.073 212.1)
-
Step 900
900 (this color)
#174C56
oklch(38.7% 0.057 212.6)
-
Step 950
950
#0E2B31
oklch(27% 0.036 213.3)
#174C56 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) | #444957 | 0.052 |
| Deuteranopia (no green cones) | #3B4356 | 0.046 |
| Tritanopia (no blue cones) | #00504F | 0.023 |
| Achromatopsia (no color) | #454545 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174C56
#174C56
oklch(38.7% 0.057 212.6)
- #5F3830
#5F3830
oklch(38.6% 0.058 32.3)
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 #174C56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.020
- Charcoal #264653 ΔE 0.021
- Dark Grey Blue #29465B ΔE 0.028
- Deep Teal #00555A ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.029
- Dark Blue Green #005249 ΔE 0.036
- Charcoal Grey #3C4142 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.054
Use #174C56 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.