#187D71
Closest named color: Bluegreen (#017A79). oklch(53.2% 0.089 182.7), rgb(24, 125, 113).
Aa
White text reads best on this color (4.98:1).
About this color
#187D71 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.089 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.019 away. White text reads best on it, at 4.98:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #187D71 |
| RGB | rgb(24, 125, 113) |
| HSL | hsl(173, 68%, 29%) |
| OKLCH | oklch(53.2% 0.089 182.7) |
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 #187D71 | 4.98:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #187D71 | 4.21:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #187D71 text on white | 4.98:1 | AA | Lc 74.1 | Content text, not long reading |
| #187D71 text on black | 4.21:1 | 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
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A5CAC3
oklch(81% 0.041 182.5)
-
Step 400
400
#72AEA4
oklch(70.7% 0.064 182.8)
-
Step 500
500
#499A8E
oklch(63.2% 0.082 182.7)
-
Step 600
600 (this color)
#187D71
oklch(53.2% 0.089 182.7)
-
Step 700
700
#127065
oklch(49.2% 0.083 182.7)
-
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)
#187D71 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) | #777571 | 0.095 |
| Deuteranopia (no green cones) | #696B72 | 0.090 |
| Tritanopia (no blue cones) | #008079 | 0.013 |
| Achromatopsia (no color) | #707070 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #187D71
#187D71
oklch(53.2% 0.089 182.7)
- #975668
#975668
oklch(53.3% 0.088 2.7)
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 #187D71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.019
- Teal #008080 ΔE 0.022
- Deep Aqua #08787F ΔE 0.031
- Dark Aquamarine #017371 ΔE 0.034
- Deep Turquoise #017374 ΔE 0.035
- Dark Cyan #008B8B ΔE 0.049
- Ocean #017B92 ΔE 0.055
- Dark Aqua #05696B ΔE 0.064
Use #187D71 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.