#177D70
Closest named color: Bluegreen (#017A79). oklch(53.2% 0.09 181.8), rgb(23, 125, 112).
Aa
White text reads best on this color (4.99:1).
About this color
#177D70 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.090 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.020 away. White text reads best on it, at 4.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.20:1 |
| White text | 4.99:1 |
Values
| HEX | #177D70 |
| RGB | rgb(23, 125, 112) |
| HSL | hsl(172, 69%, 29%) |
| OKLCH | oklch(53.2% 0.09 181.8) |
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 #177D70 | 4.99:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #177D70 | 4.20:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #177D70 text on white | 4.99:1 | AA | Lc 74.1 | Content text, not long reading |
| #177D70 text on black | 4.20:1 | AA large text | Lc -27.6 | 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 600.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A5CAC2
oklch(81% 0.041 180.6)
-
Step 400
400
#72AEA3
oklch(70.7% 0.065 181.6)
-
Step 500
500
#489A8D
oklch(63.1% 0.083 181.8)
-
Step 600
600 (this color)
#177D70
oklch(53.2% 0.09 181.8)
-
Step 700
700
#127064
oklch(49.1% 0.083 181.6)
-
Step 800
800
#155B52
oklch(42.7% 0.068 182.5)
-
Step 900
900
#1A4B44
oklch(37.7% 0.054 182.4)
-
Step 950
950
#112C28
oklch(27% 0.034 182.9)
#177D70 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) | #777570 | 0.096 |
| Deuteranopia (no green cones) | #6A6B71 | 0.091 |
| Tritanopia (no blue cones) | #008079 | 0.014 |
| Achromatopsia (no color) | #6F6F6F | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #177D70
#177D70
oklch(53.2% 0.09 181.8)
- #975568
#975568
oklch(53.2% 0.09 2.1)
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 #177D70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.020
- Teal #008080 ΔE 0.024
- Deep Aqua #08787F ΔE 0.033
- Dark Aquamarine #017371 ΔE 0.034
- Deep Turquoise #017374 ΔE 0.036
- Dark Cyan #008B8B ΔE 0.050
- Ocean #017B92 ΔE 0.057
- Dark Aqua #05696B ΔE 0.064
Use #177D70 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.