#198D72
Closest named color: Viridian (#1E9167). oklch(57.6% 0.106 172.1), rgb(25, 141, 114).
Aa
Black text reads best on this color (5.09:1).
About this color
#198D72 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.106 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.023 away. Black text reads best on it, at 5.09:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.09:1 |
| White text | 4.12:1 |
Values
| HEX | #198D72 |
| RGB | rgb(25, 141, 114) |
| HSL | hsl(166, 70%, 33%) |
| OKLCH | oklch(57.6% 0.106 172.1) |
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 #198D72 | 4.12:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #198D72 | 5.09:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #198D72 text on white | 4.12:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #198D72 text on black | 5.09:1 | AA | Lc -33.8 | 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
#E1EDE9
oklch(93.6% 0.014 174.2)
-
Step 200
200
#C9DFD7
oklch(88.5% 0.026 171.9)
-
Step 300
300
#A2CBBD
oklch(80.9% 0.048 172.2)
-
Step 400
400
#6DB09B
oklch(70.6% 0.076 172.1)
-
Step 500
500
#3F9C83
oklch(63% 0.096 172.5)
-
Step 600
600 (this color)
#198D72
oklch(57.6% 0.106 172.1)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#045D4A
oklch(42.7% 0.081 172.3)
-
Step 900
900
#144C3E
oklch(37.6% 0.062 172.8)
-
Step 950
950
#0E2D24
oklch(27.1% 0.041 171.3)
#198D72 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) | #888371 | 0.109 |
| Deuteranopia (no green cones) | #7A7974 | 0.104 |
| Tritanopia (no blue cones) | #008E85 | 0.028 |
| Achromatopsia (no color) | #7D7D7D | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #198D72
#198D72
oklch(57.6% 0.106 172.1)
- #A85D80
#A85D80
oklch(57.5% 0.106 351.6)
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 #198D72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.023
- Sea Green #2E8B57 ΔE 0.037
- Dark Cyan #008B8B ΔE 0.041
- Ocean Green #3D9973 ΔE 0.044
- Dusty Teal #4C9085 ΔE 0.047
- Blue Green #0F9B8E ΔE 0.050
- Dark Sage #598556 ΔE 0.052
- Teal Green #0A9396 ΔE 0.053
Use #198D72 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.