#3F9198
Closest named color: Teal Green (#0A9396). oklch(60.9% 0.08 202.9), rgb(63, 145, 152).
Aa
Black text reads best on this color (5.71:1).
About this color
#3F9198 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.080 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.024 away. Black text reads best on it, at 5.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #3F9198 |
| RGB | rgb(63, 145, 152) |
| HSL | hsl(185, 41%, 42%) |
| OKLCH | oklch(60.9% 0.08 202.9) |
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 #3F9198 | 3.67:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #3F9198 | 5.71:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #3F9198 text on white | 3.67:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #3F9198 text on black | 5.71:1 | AA | Lc -37.6 | 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 500.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEDF
oklch(88.6% 0.021 200.4)
-
Step 300
300
#A4C9CC
oklch(81% 0.04 202.5)
-
Step 400
400
#71ACB2
oklch(70.6% 0.062 204)
-
Step 500
500 (this color)
#3F9198
oklch(60.9% 0.08 202.9)
-
Step 600
600
#1F828A
oklch(55.6% 0.087 203.2)
-
Step 700
700
#0D6E75
oklch(49.2% 0.081 202.9)
-
Step 800
800
#12595F
oklch(42.6% 0.066 203.6)
-
Step 900
900
#194A4E
oklch(37.8% 0.052 202.7)
-
Step 950
950
#102B2E
oklch(27% 0.033 205.1)
#3F9198 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) | #878B99 | 0.080 |
| Deuteranopia (no green cones) | #798198 | 0.074 |
| Tritanopia (no blue cones) | #009693 | 0.030 |
| Achromatopsia (no color) | #858585 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F9198
#3F9198
oklch(60.9% 0.08 202.9)
- #AE706C
#AE706C
oklch(61% 0.08 23.7)
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 #3F9198, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.024
- Sea #3C9992 ΔE 0.028
- Dusty Teal #4C9085 ΔE 0.029
- Dark Cyan #008B8B ΔE 0.040
- Blue Green #0F9B8E ΔE 0.043
- Persian Green #2A9D8F ΔE 0.043
- Teal Blue #01889F ΔE 0.044
- Grey Teal #5E9B8A ΔE 0.051
Use #3F9198 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.