#3F8491
Closest named color: Teal Blue (#01889F). oklch(57.4% 0.072 211.5), rgb(63, 132, 145).
Aa
Black text reads best on this color (4.92:1).
About this color
#3F8491 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.072 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.031 away. Black text reads best on it, at 4.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #3F8491 |
| RGB | rgb(63, 132, 145) |
| HSL | hsl(190, 39%, 41%) |
| OKLCH | oklch(57.4% 0.072 211.5) |
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 #3F8491 | 4.26:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #3F8491 | 4.92:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #3F8491 text on white | 4.26:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #3F8491 text on black | 4.92:1 | AA | Lc -32.3 | 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
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDE0
oklch(88.6% 0.019 209.4)
-
Step 300
300
#AAC7CD
oklch(81% 0.032 211.6)
-
Step 400
400
#7BAAB3
oklch(70.8% 0.052 210.7)
-
Step 500
500
#5794A1
oklch(63% 0.066 212.8)
-
Step 600
600 (this color)
#3F8491
oklch(57.4% 0.072 211.5)
-
Step 700
700
#2B6B77
oklch(49.2% 0.067 211.9)
-
Step 800
800
#255760
oklch(42.6% 0.055 211)
-
Step 900
900
#24484F
oklch(37.8% 0.043 211.7)
-
Step 950
950
#162A2E
oklch(27% 0.027 211.7)
#3F8491 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) | #798092 | 0.067 |
| Deuteranopia (no green cones) | #6D7691 | 0.062 |
| Tritanopia (no blue cones) | #008A88 | 0.038 |
| Achromatopsia (no color) | #7A7A7A | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8491
#3F8491
oklch(57.4% 0.072 211.5)
- #9F695E
#9F695E
oklch(57.5% 0.072 32)
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 #3F8491, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.031
- Dark Cyan #008B8B ΔE 0.036
- Cerulean #457B9D ΔE 0.038
- Stormy Blue #507B9C ΔE 0.039
- Grey Blue #647D8E ΔE 0.041
- Teal #008080 ΔE 0.044
- Ocean #017B92 ΔE 0.044
- Teal Green #0A9396 ΔE 0.046
Use #3F8491 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.