#198A6D
Closest named color: Viridian (#1E9167). oklch(56.7% 0.106 170.2), rgb(25, 138, 109).
Aa
Black text reads best on this color (4.89:1).
About this color
#198A6D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.106 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.026 away. Black text reads best on it, at 4.89:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Viridian (#1E9167) |
| Black text | 4.89:1 |
| White text | 4.28:1 |
Values
| HEX | #198A6D |
| RGB | rgb(25, 138, 109) |
| HSL | hsl(165, 69%, 32%) |
| OKLCH | oklch(56.7% 0.106 170.2) |
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 #198A6D | 4.28:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #198A6D | 4.89:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #198A6D text on white | 4.28:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #198A6D text on black | 4.89:1 | AA | Lc -32.4 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C9DFD6
oklch(88.5% 0.026 169.2)
-
Step 300
300
#A3CBBC
oklch(80.9% 0.047 170.3)
-
Step 400
400
#6EB099
oklch(70.6% 0.076 170)
-
Step 500
500
#419C81
oklch(63% 0.096 170.7)
-
Step 600
600 (this color)
#198A6D
oklch(56.7% 0.106 170.2)
-
Step 700
700
#007258
oklch(49.1% 0.097 169.9)
-
Step 800
800
#095D48
oklch(42.7% 0.081 170)
-
Step 900
900
#154C3C
oklch(37.6% 0.063 169.9)
-
Step 950
950
#0F2D23
oklch(27.1% 0.041 168.7)
#198A6D 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) | #86806C | 0.108 |
| Deuteranopia (no green cones) | #78766F | 0.104 |
| Tritanopia (no blue cones) | #008B82 | 0.031 |
| Achromatopsia (no color) | #7A7A7A | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #198A6D
#198A6D
oklch(56.7% 0.106 170.2)
- #A45B7F
#A45B7F
oklch(56.7% 0.105 350)
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 #198A6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.026
- Sea Green #2E8B57 ΔE 0.033
- Dark Cyan #008B8B ΔE 0.045
- Dark Sage #598556 ΔE 0.049
- Teal #008080 ΔE 0.050
- Ocean Green #3D9973 ΔE 0.052
- Dusty Teal #4C9085 ΔE 0.055
- Light Forest Green #4F9153 ΔE 0.057
Use #198A6D 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.