#197B70
Closest named color: Bluegreen (#017A79). oklch(52.7% 0.087 183.5), rgb(25, 123, 112).
Aa
White text reads best on this color (5.11:1).
About this color
#197B70 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.087 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.016 away. White text reads best on it, at 5.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.10:1 |
| White text | 5.11:1 |
Values
| HEX | #197B70 |
| RGB | rgb(25, 123, 112) |
| HSL | hsl(173, 66%, 29%) |
| OKLCH | oklch(52.7% 0.087 183.5) |
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 #197B70 | 5.11:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #197B70 | 4.10:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #197B70 text on white | 5.11:1 | AA | Lc 74.9 | Content text, not long reading |
| #197B70 text on black | 4.10:1 | AA large text | Lc -26.8 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A6C9C3
oklch(80.9% 0.038 183.8)
-
Step 400
400
#73AEA4
oklch(70.7% 0.063 182.6)
-
Step 500
500
#4A998E
oklch(63% 0.08 183.5)
-
Step 600
600 (this color)
#197B70
oklch(52.7% 0.087 183.5)
-
Step 700
700
#166F65
oklch(49% 0.081 183.5)
-
Step 800
800
#175B53
oklch(42.8% 0.067 183.7)
-
Step 900
900
#1B4B44
oklch(37.8% 0.053 182.3)
-
Step 950
950
#122C28
oklch(27.1% 0.033 182.6)
#197B70 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) | #757370 | 0.093 |
| Deuteranopia (no green cones) | #686A71 | 0.088 |
| Tritanopia (no blue cones) | #007E78 | 0.013 |
| Achromatopsia (no color) | #6E6E6E | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #197B70
#197B70
oklch(52.7% 0.087 183.5)
- #945565
#945565
oklch(52.7% 0.086 4.1)
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 #197B70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.016
- Teal #008080 ΔE 0.025
- Dark Aquamarine #017371 ΔE 0.028
- Deep Aqua #08787F ΔE 0.029
- Deep Turquoise #017374 ΔE 0.030
- Dark Cyan #008B8B ΔE 0.054
- Ocean #017B92 ΔE 0.054
- Dark Aqua #05696B ΔE 0.058
Use #197B70 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.