#174C53
Closest named color: Dark Teal (#014D4E). oklch(38.5% 0.056 207.5), rgb(23, 76, 83).
Aa
White text reads best on this color (9.56:1).
About this color
#174C53 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.056 and its hue 208°. 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 9.56:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.19:1 |
| White text | 9.56:1 |
Values
| HEX | #174C53 |
| RGB | rgb(23, 76, 83) |
| HSL | hsl(187, 57%, 21%) |
| OKLCH | oklch(38.5% 0.056 207.5) |
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 #174C53 | 9.56:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #174C53 | 2.19:1 | Fails | Lc 12.0 | Not readable |
| #174C53 text on white | 9.56:1 | AAA | Lc 91.9 | Preferred for body text |
| #174C53 text on black | 2.19:1 | Fails | Lc -10.5 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE1
oklch(88.5% 0.024 206.6)
-
Step 300
300
#A2C9CE
oklch(80.9% 0.042 206)
-
Step 400
400
#6DADB6
oklch(70.8% 0.067 207.1)
-
Step 500
500
#3F98A4
oklch(63.1% 0.086 207.4)
-
Step 600
600
#0F828F
oklch(55.6% 0.093 207.5)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#065A63
oklch(42.8% 0.072 206.9)
-
Step 900
900 (this color)
#174C53
oklch(38.5% 0.056 207.5)
-
Step 950
950
#0E2B2F
oklch(26.9% 0.035 207.5)
#174C53 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) | #454953 | 0.053 |
| Deuteranopia (no green cones) | #3C4253 | 0.050 |
| Tritanopia (no blue cones) | #00504E | 0.021 |
| Achromatopsia (no color) | #454545 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174C53
#174C53
oklch(38.5% 0.056 207.5)
- #5E3833
#5E3833
oklch(38.5% 0.055 28)
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 #174C53, 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 0.022
- Dark Slate Gray #2F4F4F ΔE 0.027
- Deep Teal #00555A ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.031
- Dark Blue Green #005249 ΔE 0.032
- Charcoal Grey #3C4142 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.055
Use #174C53 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.