#197D8D
Closest named color: Ocean (#017B92). oklch(54.3% 0.088 211.4), rgb(25, 125, 141).
Aa
White text reads best on this color (4.81:1).
About this color
#197D8D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.088 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.013 away. White text reads best on it, at 4.81:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.35:1 |
| White text | 4.81:1 |
Values
| HEX | #197D8D |
| RGB | rgb(25, 125, 141) |
| HSL | hsl(188, 70%, 33%) |
| OKLCH | oklch(54.3% 0.088 211.4) |
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 #197D8D | 4.81:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #197D8D | 4.35:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #197D8D text on white | 4.81:1 | AA | Lc 73.0 | Content text, not long reading |
| #197D8D text on black | 4.35:1 | AA large text | Lc -28.7 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DDE1
oklch(88.4% 0.022 211)
-
Step 300
300
#A4C8CF
oklch(80.9% 0.04 210.7)
-
Step 400
400
#71ACB7
oklch(70.8% 0.063 210.5)
-
Step 500
500
#4697A6
oklch(63.2% 0.082 211.4)
-
Step 600
600 (this color)
#197D8D
oklch(54.3% 0.088 211.4)
-
Step 700
700
#0D6D7B
oklch(49.1% 0.082 210.7)
-
Step 800
800
#125964
oklch(42.8% 0.068 210.6)
-
Step 900
900
#194952
oklch(37.7% 0.053 212.1)
-
Step 950
950
#102B30
oklch(27% 0.034 211.3)
#197D8D 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) | #70788E | 0.082 |
| Deuteranopia (no green cones) | #616D8D | 0.075 |
| Tritanopia (no blue cones) | #008482 | 0.032 |
| Achromatopsia (no color) | #727272 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #197D8D
#197D8D
oklch(54.3% 0.088 211.4)
- #9C5B4F
#9C5B4F
oklch(54.2% 0.088 31.3)
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 #197D8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.013
- Deep Aqua #08787F ΔE 0.026
- Teal #008080 ΔE 0.027
- Bluegreen #017A79 ΔE 0.033
- Sea Blue #047495 ΔE 0.035
- Teal Blue #01889F ΔE 0.037
- Cerulean #457B9D ΔE 0.043
- Dark Cyan #008B8B ΔE 0.044
Use #197D8D 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.