#137A6E
Closest named color: Bluegreen (#017A79). oklch(52.2% 0.089 182.6), rgb(19, 122, 110).
Aa
White text reads best on this color (5.20:1).
About this color
#137A6E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, 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 0.017 away. White text reads best on it, at 5.20:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #137A6E |
| RGB | rgb(19, 122, 110) |
| HSL | hsl(173, 73%, 28%) |
| OKLCH | oklch(52.2% 0.089 182.6) |
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 #137A6E | 5.20:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #137A6E | 4.03:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #137A6E text on white | 5.20:1 | AA | Lc 75.4 | Fine for body text |
| #137A6E text on black | 4.03:1 | AA large text | Lc -26.4 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFDA
oklch(88.6% 0.024 180.6)
-
Step 300
300
#A3CAC3
oklch(80.9% 0.043 183.1)
-
Step 400
400
#6EAFA4
oklch(70.7% 0.069 182.4)
-
Step 500
500
#419B8E
oklch(63.1% 0.088 182.5)
-
Step 600
600
#128578
oklch(55.5% 0.095 182.7)
-
Step 700
700 (this color)
#137A6E
oklch(52.2% 0.089 182.6)
-
Step 800
800
#095C52
oklch(42.7% 0.074 181.9)
-
Step 900
900
#154B44
oklch(37.6% 0.057 183)
-
Step 950
950
#0F2C28
oklch(27% 0.036 183.4)
#137A6E 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) | #74726E | 0.095 |
| Deuteranopia (no green cones) | #67696F | 0.089 |
| Tritanopia (no blue cones) | #007D76 | 0.013 |
| Achromatopsia (no color) | #6D6D6D | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #137A6E
#137A6E
oklch(52.2% 0.089 182.6)
- #945365
#945365
oklch(52.3% 0.089 2.8)
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 #137A6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.017
- Dark Aquamarine #017371 ΔE 0.025
- Deep Turquoise #017374 ΔE 0.028
- Teal #008080 ΔE 0.029
- Deep Aqua #08787F ΔE 0.030
- Dark Aqua #05696B ΔE 0.055
- Ocean #017B92 ΔE 0.057
- Dark Cyan #008B8B ΔE 0.058
Use #137A6E 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.