#3F8698
Closest named color: Teal Blue (#01889F). oklch(58.2% 0.076 216.8), rgb(63, 134, 152).
Aa
Black text reads best on this color (5.07:1).
About this color
#3F8698 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.076 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.027 away. Black text reads best on it, at 5.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #3F8698 |
| RGB | rgb(63, 134, 152) |
| HSL | hsl(192, 41%, 42%) |
| OKLCH | oklch(58.2% 0.076 216.8) |
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 #3F8698 | 4.13:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #3F8698 | 5.07:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #3F8698 text on white | 4.13:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #3F8698 text on black | 5.07:1 | AA | Lc -33.4 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CCDDE1
oklch(88.6% 0.019 213.4)
-
Step 300
300
#A9C7CF
oklch(81% 0.034 215.6)
-
Step 400
400
#79AAB7
oklch(70.8% 0.055 216)
-
Step 500
500
#5594A5
oklch(63.1% 0.07 217.2)
-
Step 600
600 (this color)
#3F8698
oklch(58.2% 0.076 216.8)
-
Step 700
700
#286A7B
oklch(49% 0.071 217.9)
-
Step 800
800
#235764
oklch(42.7% 0.059 216.8)
-
Step 900
900
#224851
oklch(37.8% 0.046 215.1)
-
Step 950
950
#152A30
oklch(27% 0.029 218.2)
#3F8698 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) | #7A8299 | 0.067 |
| Deuteranopia (no green cones) | #6D7898 | 0.061 |
| Tritanopia (no blue cones) | #008D8C | 0.042 |
| Achromatopsia (no color) | #7D7D7D | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8698
#3F8698
oklch(58.2% 0.076 216.8)
- #A26B5B
#A26B5B
oklch(58.2% 0.075 36.9)
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 #3F8698, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.027
- Cerulean #457B9D ΔE 0.036
- Stormy Blue #507B9C ΔE 0.037
- Dark Cyan #008B8B ΔE 0.040
- Blue NCS #118AB2 ΔE 0.042
- Grey Blue #647D8E ΔE 0.042
- Teal Green #0A9396 ΔE 0.044
- Off Blue #5684AE ΔE 0.045
Use #3F8698 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.