#17828A
Closest named color: Teal (#008080). oklch(55.5% 0.089 202.9), rgb(23, 130, 138).
Aa
Black text reads best on this color (4.59:1).
About this color
#17828A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.089 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.018 away. Black text reads best on it, at 4.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #17828A |
| RGB | rgb(23, 130, 138) |
| HSL | hsl(184, 71%, 32%) |
| OKLCH | oklch(55.5% 0.089 202.9) |
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 #17828A | 4.56:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #17828A | 4.59:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #17828A text on white | 4.56:1 | AA | Lc 71.3 | Content text, not long reading |
| #17828A text on black | 4.59:1 | AA | Lc -30.4 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CC
oklch(80.9% 0.041 202.3)
-
Step 400
400
#6FADB2
oklch(70.7% 0.064 202.3)
-
Step 500
500
#43989F
oklch(63.1% 0.082 202.7)
-
Step 600
600 (this color)
#17828A
oklch(55.5% 0.089 202.9)
-
Step 700
700
#026E75
oklch(49% 0.083 202.6)
-
Step 800
800
#0D5A60
oklch(42.8% 0.069 203.2)
-
Step 900
900
#164A4E
oklch(37.7% 0.054 202.4)
-
Step 950
950
#0F2B2E
oklch(26.9% 0.034 204.8)
#17828A 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) | #777C8B | 0.090 |
| Deuteranopia (no green cones) | #68718A | 0.082 |
| Tritanopia (no blue cones) | #008884 | 0.024 |
| Achromatopsia (no color) | #767676 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17828A
#17828A
oklch(55.5% 0.089 202.9)
- #A15D5A
#A15D5A
oklch(55.5% 0.09 23)
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 #17828A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.018
- Dark Cyan #008B8B ΔE 0.027
- Ocean #017B92 ΔE 0.029
- Teal Blue #01889F ΔE 0.033
- Deep Aqua #08787F ΔE 0.033
- Bluegreen #017A79 ΔE 0.034
- Teal Green #0A9396 ΔE 0.050
- Cerulean #457B9D ΔE 0.052
Use #17828A 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.