#157666
Closest named color: Dark Aquamarine (#017371). oklch(50.9% 0.088 178.2), rgb(21, 118, 102).
Aa
White text reads best on this color (5.50:1).
About this color
#157666 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.088 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.023 away. White text reads best on it, at 5.50:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.81:1 |
| White text | 5.50:1 |
Values
| HEX | #157666 |
| RGB | rgb(21, 118, 102) |
| HSL | hsl(170, 70%, 27%) |
| OKLCH | oklch(50.9% 0.088 178.2) |
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 #157666 | 5.50:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #157666 | 3.81:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #157666 text on white | 5.50:1 | AA | Lc 77.1 | Fine for body text |
| #157666 text on black | 3.81:1 | AA large text | Lc -24.7 | 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
#CADFD9
oklch(88.6% 0.024 176.8)
-
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
#459B8A
oklch(63.2% 0.087 178.4)
-
Step 600
600
#1D8573
oklch(55.6% 0.095 177.9)
-
Step 700
700 (this color)
#157666
oklch(50.9% 0.088 178.2)
-
Step 800
800
#105C4F
oklch(42.8% 0.073 177.9)
-
Step 900
900
#184B42
oklch(37.6% 0.056 179.4)
-
Step 950
950
#102C26
oklch(26.9% 0.036 177.5)
#157666 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) | #716E65 | 0.093 |
| Deuteranopia (no green cones) | #646567 | 0.088 |
| Tritanopia (no blue cones) | #007871 | 0.016 |
| Achromatopsia (no color) | #696969 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #157666
#157666
oklch(50.9% 0.088 178.2)
- #8E4F65
#8E4F65
oklch(50.9% 0.088 358.4)
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 #157666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.023
- Deep Turquoise #017374 ΔE 0.027
- Bluegreen #017A79 ΔE 0.028
- Deep Aqua #08787F ΔE 0.038
- Teal #008080 ΔE 0.043
- Dark Aqua #05696B ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.058
- Ocean #017B92 ΔE 0.068
Use #157666 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.