#137A8B
Closest named color: Ocean (#017B92). oklch(53.4% 0.089 212.4), rgb(19, 122, 139).
Aa
White text reads best on this color (5.01:1).
About this color
#137A8B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.089 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.011 away. White text reads best on it, at 5.01:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.18:1 |
| White text | 5.01:1 |
Values
| HEX | #137A8B |
| RGB | rgb(19, 122, 139) |
| HSL | hsl(189, 76%, 31%) |
| OKLCH | oklch(53.4% 0.089 212.4) |
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 #137A8B | 5.01:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #137A8B | 4.18:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #137A8B text on white | 5.01:1 | AA | Lc 74.3 | Content text, not long reading |
| #137A8B text on black | 4.18:1 | AA large text | Lc -27.4 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DDE2
oklch(88.4% 0.022 214.4)
-
Step 300
300
#A4C8D0
oklch(80.9% 0.04 212.7)
-
Step 400
400
#70ACB8
oklch(70.8% 0.064 211.6)
-
Step 500
500
#4697A7
oklch(63.2% 0.082 212.4)
-
Step 600
600 (this color)
#137A8B
oklch(53.4% 0.089 212.4)
-
Step 700
700
#0D6D7C
oklch(49.2% 0.083 211.8)
-
Step 800
800
#125965
oklch(42.8% 0.068 211.9)
-
Step 900
900
#194952
oklch(37.7% 0.053 212.1)
-
Step 950
950
#102B30
oklch(27% 0.034 211.3)
#137A8B 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) | #6D758C | 0.082 |
| Deuteranopia (no green cones) | #5E6A8B | 0.075 |
| Tritanopia (no blue cones) | #00817F | 0.033 |
| Achromatopsia (no color) | #6F6F6F | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #137A8B
#137A8B
oklch(53.4% 0.089 212.4)
- #99594B
#99594B
oklch(53.4% 0.088 33.2)
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 #137A8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.011
- Deep Aqua #08787F ΔE 0.020
- Sea Blue #047495 ΔE 0.028
- Teal #008080 ΔE 0.030
- Bluegreen #017A79 ΔE 0.030
- Deep Turquoise #017374 ΔE 0.039
- Dark Aquamarine #017371 ΔE 0.044
- Ocean Blue #03719C ΔE 0.044
Use #137A8B 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.