#137868
Closest named color: Dark Aquamarine (#017371). oklch(51.5% 0.09 178.6), rgb(19, 120, 104).
Aa
White text reads best on this color (5.36:1).
About this color
#137868 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.090 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.025 away. White text reads best on it, at 5.36:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.91:1 |
| White text | 5.36:1 |
Values
| HEX | #137868 |
| RGB | rgb(19, 120, 104) |
| HSL | hsl(170, 73%, 27%) |
| OKLCH | oklch(51.5% 0.09 178.6) |
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 #137868 | 5.36:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #137868 | 3.91:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #137868 text on white | 5.36:1 | AA | Lc 76.3 | Fine for body text |
| #137868 text on black | 3.91:1 | AA large text | Lc -25.4 | 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
#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
#A3CAC1
oklch(80.8% 0.043 179.5)
-
Step 400
400
#6FAFA1
oklch(70.7% 0.069 178.8)
-
Step 500
500
#439B8A
oklch(63.1% 0.089 178.6)
-
Step 600
600
#178574
oklch(55.5% 0.096 179)
-
Step 700
700 (this color)
#137868
oklch(51.5% 0.09 178.6)
-
Step 800
800
#0C5C4F
oklch(42.7% 0.075 178.2)
-
Step 900
900
#174C42
oklch(37.9% 0.058 178.1)
-
Step 950
950
#0F2C27
oklch(26.9% 0.036 180.5)
#137868 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) | #737067 | 0.095 |
| Deuteranopia (no green cones) | #666769 | 0.089 |
| Tritanopia (no blue cones) | #007A73 | 0.016 |
| Achromatopsia (no color) | #6B6B6B | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #137868
#137868
oklch(51.5% 0.09 178.6)
- #915067
#915067
oklch(51.5% 0.091 358.2)
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 #137868, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.025
- Bluegreen #017A79 ΔE 0.025
- Deep Turquoise #017374 ΔE 0.029
- Deep Aqua #08787F ΔE 0.037
- Teal #008080 ΔE 0.038
- Dark Aqua #05696B ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.064
- Ocean #017B92 ΔE 0.065
Use #137868 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.