#197D8F
Closest named color: Ocean (#017B92). oklch(54.4% 0.089 213.3), rgb(25, 125, 143).
Aa
White text reads best on this color (4.80:1).
About this color
#197D8F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.089 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.011 away. White text reads best on it, at 4.80:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.37:1 |
| White text | 4.80:1 |
Values
| HEX | #197D8F |
| RGB | rgb(25, 125, 143) |
| HSL | hsl(189, 70%, 33%) |
| OKLCH | oklch(54.4% 0.089 213.3) |
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 #197D8F | 4.80:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #197D8F | 4.37:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #197D8F text on white | 4.80:1 | AA | Lc 72.9 | Content text, not long reading |
| #197D8F text on black | 4.37:1 | AA large text | Lc -28.8 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DDE2
oklch(88.4% 0.022 214.4)
-
Step 300
300
#A4C8D0
oklch(80.9% 0.04 212.7)
-
Step 400
400
#70ABB9
oklch(70.6% 0.064 214.3)
-
Step 500
500
#4696A7
oklch(63% 0.082 213.6)
-
Step 600
600 (this color)
#197D8F
oklch(54.4% 0.089 213.3)
-
Step 700
700
#0D6D7D
oklch(49.2% 0.083 212.9)
-
Step 800
800
#125866
oklch(42.6% 0.069 214.8)
-
Step 900
900
#194953
oklch(37.8% 0.053 213.9)
-
Step 950
950
#102B30
oklch(27% 0.034 211.3)
#197D8F 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) | #707990 | 0.081 |
| Deuteranopia (no green cones) | #606D8F | 0.073 |
| Tritanopia (no blue cones) | #008483 | 0.033 |
| Achromatopsia (no color) | #727272 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #197D8F
#197D8F
oklch(54.4% 0.089 213.3)
- #9D5C4D
#9D5C4D
oklch(54.5% 0.089 33.8)
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 #197D8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.011
- Deep Aqua #08787F ΔE 0.028
- Teal #008080 ΔE 0.030
- Sea Blue #047495 ΔE 0.033
- Teal Blue #01889F ΔE 0.035
- Bluegreen #017A79 ΔE 0.036
- Cerulean #457B9D ΔE 0.040
- Dark Cyan #008B8B ΔE 0.045
Use #197D8F 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.