#137E73
Closest named color: Bluegreen (#017A79). oklch(53.5% 0.091 183.9), rgb(19, 126, 115).
Aa
White text reads best on this color (4.93:1).
About this color
#137E73 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.091 and its hue 184°. 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 4.93:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #137E73 |
| RGB | rgb(19, 126, 115) |
| HSL | hsl(174, 74%, 28%) |
| OKLCH | oklch(53.5% 0.091 183.9) |
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 #137E73 | 4.93:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #137E73 | 4.25:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #137E73 text on white | 4.93:1 | AA | Lc 73.7 | Content text, not long reading |
| #137E73 text on black | 4.25:1 | AA large text | Lc -28.0 | 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
#E2EDEB
oklch(93.7% 0.012 184.1)
-
Step 200
200
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A4CAC3
oklch(80.9% 0.042 182.8)
-
Step 400
400
#71AEA5
oklch(70.7% 0.065 184.2)
-
Step 500
500
#469A8F
oklch(63.1% 0.083 183.9)
-
Step 600
600 (this color)
#137E73
oklch(53.5% 0.091 183.9)
-
Step 700
700
#0C7066
oklch(49.1% 0.084 183.9)
-
Step 800
800
#115B53
oklch(42.6% 0.07 184)
-
Step 900
900
#194B45
oklch(37.7% 0.054 184.3)
-
Step 950
950
#102C28
oklch(27% 0.035 183.1)
#137E73 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) | #777673 | 0.096 |
| Deuteranopia (no green cones) | #6A6C74 | 0.092 |
| Tritanopia (no blue cones) | #00817B | 0.013 |
| Achromatopsia (no color) | #707070 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #137E73
#137E73
oklch(53.5% 0.091 183.9)
- #995667
#995667
oklch(53.6% 0.091 4.3)
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 #137E73, 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 0.019
- Deep Aqua #08787F ΔE 0.031
- Dark Aquamarine #017371 ΔE 0.036
- Deep Turquoise #017374 ΔE 0.037
- Dark Cyan #008B8B ΔE 0.046
- Ocean #017B92 ΔE 0.053
- Dark Aqua #05696B ΔE 0.066
Use #137E73 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.