#17837E
Closest named color: Teal (#008080). oklch(55.3% 0.09 189.9), rgb(23, 131, 126).
Aa
Black text reads best on this color (4.58:1).
About this color
#17837E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.090 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.013 away. Black text reads best on it, at 4.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.58:1 |
| White text | 4.58:1 |
Values
| HEX | #17837E |
| RGB | rgb(23, 131, 126) |
| HSL | hsl(177, 70%, 30%) |
| OKLCH | oklch(55.3% 0.09 189.9) |
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 #17837E | 4.58:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #17837E | 4.58:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #17837E text on white | 4.58:1 | AA | Lc 71.4 | Content text, not long reading |
| #17837E text on black | 4.58:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#C9DEDC
oklch(88.4% 0.023 189.8)
-
Step 300
300
#A3C9C6
oklch(80.8% 0.041 190.5)
-
Step 400
400
#6FAEA9
oklch(70.7% 0.065 189.4)
-
Step 500
500
#439A94
oklch(63.2% 0.084 189.1)
-
Step 600
600 (this color)
#17837E
oklch(55.3% 0.09 189.9)
-
Step 700
700
#03706B
oklch(49.2% 0.084 189.4)
-
Step 800
800
#0D5B57
oklch(42.7% 0.07 189.4)
-
Step 900
900
#174B48
oklch(37.8% 0.054 189.7)
-
Step 950
950
#0F2C2A
oklch(27% 0.035 189.2)
#17837E 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) | #7B7C7E | 0.095 |
| Deuteranopia (no green cones) | #6C717F | 0.089 |
| Tritanopia (no blue cones) | #008781 | 0.012 |
| Achromatopsia (no color) | #757575 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17837E
#17837E
oklch(55.3% 0.09 189.9)
- #9F5B66
#9F5B66
oklch(55.2% 0.09 10)
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 #17837E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.013
- Dark Cyan #008B8B ΔE 0.026
- Bluegreen #017A79 ΔE 0.029
- Deep Aqua #08787F ΔE 0.036
- Ocean #017B92 ΔE 0.046
- Teal Blue #01889F ΔE 0.050
- Deep Turquoise #017374 ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.051
Use #17837E 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.