#137266
Closest named color: Dark Aquamarine (#017371). oklch(49.8% 0.084 181.8), rgb(19, 114, 102).
Aa
White text reads best on this color (5.79:1).
About this color
#137266 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 50%, its chroma 0.084 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.017 away. White text reads best on it, at 5.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.62:1 |
| White text | 5.79:1 |
Values
| HEX | #137266 |
| RGB | rgb(19, 114, 102) |
| HSL | hsl(172, 71%, 26%) |
| OKLCH | oklch(49.8% 0.084 181.8) |
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 #137266 | 5.79:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #137266 | 3.62:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #137266 text on white | 5.79:1 | AA | Lc 78.6 | Fine for body text |
| #137266 text on black | 3.62:1 | AA large text | Lc -23.2 | 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
#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
#71AEA3
oklch(70.6% 0.065 181.7)
-
Step 500
500
#479A8D
oklch(63.1% 0.083 181.9)
-
Step 600
600
#218477
oklch(55.5% 0.09 182.1)
-
Step 700
700 (this color)
#137266
oklch(49.8% 0.084 181.8)
-
Step 800
800
#135B52
oklch(42.6% 0.069 182.6)
-
Step 900
900
#194B44
oklch(37.7% 0.055 182.6)
-
Step 950
950
#112C28
oklch(27% 0.034 182.9)
#137266 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) | #6C6B66 | 0.089 |
| Deuteranopia (no green cones) | #606267 | 0.084 |
| Tritanopia (no blue cones) | #00746E | 0.012 |
| Achromatopsia (no color) | #656565 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #137266
#137266
oklch(49.8% 0.084 181.8)
- #8A4D5F
#8A4D5F
oklch(49.8% 0.085 1.7)
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 #137266, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.017
- Deep Turquoise #017374 ΔE 0.022
- Bluegreen #017A79 ΔE 0.033
- Dark Aqua #05696B ΔE 0.033
- Deep Aqua #08787F ΔE 0.039
- Dark Green Blue #1F6357 ΔE 0.046
- Teal #008080 ΔE 0.050
- Petrol #005F6A ΔE 0.066
Use #137266 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.