#177969
Closest named color: Bluegreen (#017A79). oklch(51.9% 0.089 178.5), rgb(23, 121, 105).
Aa
White text reads best on this color (5.28:1).
About this color
#177969 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.089 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.024 away. White text reads best on it, at 5.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #177969 |
| RGB | rgb(23, 121, 105) |
| HSL | hsl(170, 68%, 28%) |
| OKLCH | oklch(51.9% 0.089 178.5) |
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 #177969 | 5.28:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #177969 | 3.97:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #177969 text on white | 5.28:1 | AA | Lc 75.9 | Fine for body text |
| #177969 text on black | 3.97:1 | AA large text | Lc -25.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#C9DFD9
oklch(88.6% 0.025 177.6)
-
Step 300
300
#A4CAC1
oklch(80.9% 0.042 179.2)
-
Step 400
400
#70AFA1
oklch(70.7% 0.068 178.6)
-
Step 500
500
#449B8A
oklch(63.1% 0.088 178.5)
-
Step 600
600
#1A8574
oklch(55.5% 0.095 178.9)
-
Step 700
700 (this color)
#177969
oklch(51.9% 0.089 178.5)
-
Step 800
800
#0E5C4F
oklch(42.7% 0.074 178.1)
-
Step 900
900
#174B42
oklch(37.6% 0.057 179.5)
-
Step 950
950
#102C27
oklch(27% 0.035 180.2)
#177969 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) | #747168 | 0.094 |
| Deuteranopia (no green cones) | #67686A | 0.089 |
| Tritanopia (no blue cones) | #007B74 | 0.016 |
| Achromatopsia (no color) | #6C6C6C | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #177969
#177969
oklch(51.9% 0.089 178.5)
- #915268
#915268
oklch(51.9% 0.088 358.3)
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 #177969, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.024
- Dark Aquamarine #017371 ΔE 0.027
- Deep Turquoise #017374 ΔE 0.031
- Teal #008080 ΔE 0.036
- Deep Aqua #08787F ΔE 0.036
- Dark Aqua #05696B ΔE 0.054
- Ocean #017B92 ΔE 0.064
- Dark Cyan #008B8B ΔE 0.064
Use #177969 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.