#137B7D
Closest named color: Bluegreen (#017A79). oklch(53.1% 0.086 197), rgb(19, 123, 125).
Aa
White text reads best on this color (5.05:1).
About this color
#137B7D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.086 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.009 away. White text reads best on it, at 5.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #137B7D |
| RGB | rgb(19, 123, 125) |
| HSL | hsl(181, 74%, 28%) |
| OKLCH | oklch(53.1% 0.086 197) |
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 #137B7D | 5.05:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #137B7D | 4.15:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #137B7D text on white | 5.05:1 | AA | Lc 74.5 | Content text, not long reading |
| #137B7D text on black | 4.15:1 | AA large text | Lc -27.2 | 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 600.
-
Step 50
50
#F2F7F7
oklch(97.2% 0.005 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADEDE
oklch(88.6% 0.021 196.8)
-
Step 300
300
#A4C9C9
oklch(80.9% 0.039 196.4)
-
Step 400
400
#71ADAE
oklch(70.7% 0.062 197.2)
-
Step 500
500
#47989A
oklch(63% 0.079 197.5)
-
Step 600
600 (this color)
#137B7D
oklch(53.1% 0.086 197)
-
Step 700
700
#0F6E70
oklch(49% 0.08 197.2)
-
Step 800
800
#135A5B
oklch(42.7% 0.066 196.4)
-
Step 900
900
#194A4B
oklch(37.7% 0.052 197.1)
-
Step 950
950
#112B2C
oklch(26.9% 0.032 198.8)
#137B7D 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) | #72757D | 0.089 |
| Deuteranopia (no green cones) | #646A7E | 0.084 |
| Tritanopia (no blue cones) | #00807B | 0.017 |
| Achromatopsia (no color) | #6F6F6F | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #137B7D
#137B7D
oklch(53.1% 0.086 197)
- #97565A
#97565A
oklch(52.9% 0.086 16.5)
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 #137B7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.009
- Deep Aqua #08787F ΔE 0.012
- Teal #008080 ΔE 0.015
- Deep Turquoise #017374 ΔE 0.027
- Dark Aquamarine #017371 ΔE 0.029
- Ocean #017B92 ΔE 0.034
- Dark Cyan #008B8B ΔE 0.048
- Sea Blue #047495 ΔE 0.050
Use #137B7D 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.