#197E91
Closest named color: Ocean (#017B92). oklch(54.8% 0.09 214.1), rgb(25, 126, 145).
Aa
White text reads best on this color (4.73:1).
About this color
#197E91 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.090 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.012 away. White text reads best on it, at 4.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.43:1 |
| White text | 4.73:1 |
Values
| HEX | #197E91 |
| RGB | rgb(25, 126, 145) |
| HSL | hsl(190, 71%, 33%) |
| OKLCH | oklch(54.8% 0.09 214.1) |
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 #197E91 | 4.73:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #197E91 | 4.43:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #197E91 text on white | 4.73:1 | AA | Lc 72.5 | Content text, not long reading |
| #197E91 text on black | 4.43:1 | AA large text | Lc -29.2 | 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
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#C9DDE2
oklch(88.4% 0.022 214.4)
-
Step 300
300
#A4C8D1
oklch(81% 0.04 214.6)
-
Step 400
400
#70ABB9
oklch(70.6% 0.064 214.3)
-
Step 500
500
#4596A8
oklch(63% 0.083 214.4)
-
Step 600
600 (this color)
#197E91
oklch(54.8% 0.09 214.1)
-
Step 700
700
#0A6C7E
oklch(49% 0.084 215)
-
Step 800
800
#115866
oklch(42.6% 0.069 214.6)
-
Step 900
900
#184953
oklch(37.7% 0.054 213.6)
-
Step 950
950
#102B31
oklch(27.1% 0.034 214.3)
#197E91 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) | #707A92 | 0.080 |
| Deuteranopia (no green cones) | #616E91 | 0.074 |
| Tritanopia (no blue cones) | #008584 | 0.035 |
| Achromatopsia (no color) | #737373 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #197E91
#197E91
oklch(54.8% 0.09 214.1)
- #9E5D4D
#9E5D4D
oklch(54.8% 0.089 34.7)
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 #197E91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.012
- Teal #008080 ΔE 0.031
- Teal Blue #01889F ΔE 0.032
- Deep Aqua #08787F ΔE 0.032
- Sea Blue #047495 ΔE 0.035
- Cerulean #457B9D ΔE 0.039
- Bluegreen #017A79 ΔE 0.039
- Dark Cyan #008B8B ΔE 0.044
Use #197E91 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.