#17A8A2
Closest named color: Light Sea Green (#20B2AA). oklch(66.2% 0.111 190.2), rgb(23, 168, 162).
Aa
Black text reads best on this color (7.15:1).
About this color
#17A8A2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.111 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.030 away. Black text reads best on it, at 7.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.15:1 |
| White text | 2.93:1 |
Values
| HEX | #17A8A2 |
| RGB | rgb(23, 168, 162) |
| HSL | hsl(178, 76%, 37%) |
| OKLCH | oklch(66.2% 0.111 190.2) |
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 #17A8A2 | 2.93:1 | Fails | Lc -60.6 | Content text, not long reading |
| Black text on #17A8A2 | 7.15:1 | AAA | Lc 48.8 | Large or bold text, headings |
| #17A8A2 text on white | 2.93:1 | Fails | Lc 55.3 | Large or bold text, headings |
| #17A8A2 text on black | 7.15:1 | AAA | Lc -46.5 | Large or bold text, headings |
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 500.
-
Step 50
50
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C4E0DD
oklch(88.5% 0.03 188.8)
-
Step 300
300
#99CCC8
oklch(80.8% 0.053 190.1)
-
Step 400
400
#58B2AD
oklch(70.7% 0.087 190.6)
-
Step 500
500 (this color)
#17A8A2
oklch(66.2% 0.111 190.2)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#012D2B
oklch(26.9% 0.046 190.1)
#17A8A2 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) | #9D9FA2 | 0.116 |
| Deuteranopia (no green cones) | #8B91A3 | 0.110 |
| Tritanopia (no blue cones) | #00ADA6 | 0.014 |
| Achromatopsia (no color) | #979797 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17A8A2
#17A8A2
oklch(66.2% 0.111 190.2)
- #CC7583
#CC7583
oklch(66.2% 0.11 10.2)
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 #17A8A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.030
- Persian Green #2A9D8F ΔE 0.035
- Sea #3C9992 ΔE 0.043
- Blue Green #0F9B8E ΔE 0.043
- Dull Teal #5F9E8F ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.047
- Greeny Blue #42B395 ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.050
Use #17A8A2 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.