#137C82
Closest named color: Deep Aqua (#08787F). oklch(53.5% 0.087 201.1), rgb(19, 124, 130).
Aa
White text reads best on this color (4.96:1).
About this color
#137C82 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.087 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.013 away. White text reads best on it, at 4.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.23:1 |
| White text | 4.96:1 |
Values
| HEX | #137C82 |
| RGB | rgb(19, 124, 130) |
| HSL | hsl(183, 74%, 29%) |
| OKLCH | oklch(53.5% 0.087 201.1) |
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 #137C82 | 4.96:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #137C82 | 4.23:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #137C82 text on white | 4.96:1 | AA | Lc 73.9 | Content text, not long reading |
| #137C82 text on black | 4.23:1 | AA large text | Lc -27.8 | 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
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A4C9CB
oklch(81% 0.039 200.5)
-
Step 400
400
#70ADB1
oklch(70.8% 0.063 201.1)
-
Step 500
500
#46989D
oklch(63.1% 0.08 200.7)
-
Step 600
600 (this color)
#137C82
oklch(53.5% 0.087 201.1)
-
Step 700
700
#0C6E74
oklch(49.1% 0.081 201.7)
-
Step 800
800
#115A5E
oklch(42.8% 0.067 200.6)
-
Step 900
900
#194A4D
oklch(37.8% 0.052 200.8)
-
Step 950
950
#102B2D
oklch(26.9% 0.033 201.9)
#137C82 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) | #727683 | 0.088 |
| Deuteranopia (no green cones) | #636B82 | 0.082 |
| Tritanopia (no blue cones) | #00817E | 0.019 |
| Achromatopsia (no color) | #707070 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #137C82
#137C82
oklch(53.5% 0.087 201.1)
- #995857
#995857
oklch(53.5% 0.086 21.3)
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 #137C82, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.013
- Teal #008080 ΔE 0.014
- Bluegreen #017A79 ΔE 0.016
- Ocean #017B92 ΔE 0.027
- Deep Turquoise #017374 ΔE 0.033
- Dark Aquamarine #017371 ΔE 0.035
- Dark Cyan #008B8B ΔE 0.044
- Sea Blue #047495 ΔE 0.045
Use #137C82 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.