#175354
Closest named color: Deep Teal (#00555A). oklch(40.5% 0.06 196.7), rgb(23, 83, 84).
Aa
White text reads best on this color (8.74:1).
About this color
#175354 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.060 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.012 away. White text reads best on it, at 8.74:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.40:1 |
| White text | 8.74:1 |
Values
| HEX | #175354 |
| RGB | rgb(23, 83, 84) |
| HSL | hsl(181, 57%, 21%) |
| OKLCH | oklch(40.5% 0.06 196.7) |
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 #175354 | 8.74:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #175354 | 2.40:1 | Fails | Lc 14.3 | Not readable |
| #175354 text on white | 8.74:1 | AAA | Lc 89.7 | Fine for body text |
| #175354 text on black | 2.40:1 | Fails | Lc -12.6 | 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 800.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A7C8C8
oklch(80.9% 0.035 196.5)
-
Step 400
400
#77ACAC
oklch(70.8% 0.056 196)
-
Step 500
500
#509798
oklch(63.1% 0.071 196.7)
-
Step 600
600
#308183
oklch(55.5% 0.077 197.5)
-
Step 700
700
#216D6E
oklch(49% 0.072 196.3)
-
Step 800
800 (this color)
#175354
oklch(40.5% 0.06 196.7)
-
Step 900
900
#20494A
oklch(37.7% 0.046 197.5)
-
Step 950
950
#142B2B
oklch(27% 0.029 195.6)
#175354 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) | #4D4F54 | 0.062 |
| Deuteranopia (no green cones) | #444854 | 0.058 |
| Tritanopia (no blue cones) | #005653 | 0.013 |
| Achromatopsia (no color) | #4B4B4B | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175354
#175354
oklch(40.5% 0.06 196.7)
- #663B3E
#663B3E
oklch(40.5% 0.061 15.6)
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 #175354, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.012
- Dark Slate Gray #2F4F4F ΔE 0.022
- Dark Blue Green #005249 ΔE 0.023
- Dark Teal #014D4E ΔE 0.025
- Charcoal #264653 ΔE 0.043
- Petrol #005F6A ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.049
- Dark Green Blue #1F6357 ΔE 0.053
Use #175354 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.