#137187
Closest named color: Sea Blue (#047495). oklch(50.8% 0.087 218.7), rgb(19, 113, 135).
Aa
White text reads best on this color (5.61:1).
About this color
#137187 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.087 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.022 away. White text reads best on it, at 5.61:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.73:1 |
| White text | 5.61:1 |
Values
| HEX | #137187 |
| RGB | rgb(19, 113, 135) |
| HSL | hsl(191, 75%, 30%) |
| OKLCH | oklch(50.8% 0.087 218.7) |
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 #137187 | 5.61:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #137187 | 3.73:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #137187 text on white | 5.61:1 | AA | Lc 77.7 | Fine for body text |
| #137187 text on black | 3.73:1 | AA large text | Lc -24.1 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A3C8D3
oklch(81% 0.042 217.8)
-
Step 400
400
#6FABBD
oklch(70.7% 0.067 218.8)
-
Step 500
500
#4496AC
oklch(63.1% 0.086 218.1)
-
Step 600
600
#1B8098
oklch(55.6% 0.093 218.5)
-
Step 700
700 (this color)
#137187
oklch(50.8% 0.087 218.7)
-
Step 800
800
#0F5869
oklch(42.7% 0.072 218.2)
-
Step 900
900
#174956
oklch(37.8% 0.056 218.4)
-
Step 950
950
#102B32
oklch(27.1% 0.035 217.1)
#137187 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) | #636E88 | 0.073 |
| Deuteranopia (no green cones) | #546387 | 0.065 |
| Tritanopia (no blue cones) | #007878 | 0.038 |
| Achromatopsia (no color) | #676767 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #137187
#137187
oklch(50.8% 0.087 218.7)
- #90533F
#90533F
oklch(50.8% 0.087 38.9)
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 #137187, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.022
- Deep Aqua #08787F ΔE 0.029
- Ocean #017B92 ΔE 0.031
- Ocean Blue #03719C ΔE 0.034
- Deep Turquoise #017374 ΔE 0.035
- Dark Aquamarine #017371 ΔE 0.039
- Bluegreen #017A79 ΔE 0.041
- Peacock Blue #016795 ΔE 0.044
Use #137187 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.