#3F8294
Closest named color: Cerulean (#457B9D). oklch(57% 0.073 217.8), rgb(63, 130, 148).
Aa
Black text reads best on this color (4.83:1).
About this color
#3F8294 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.073 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.029 away. Black text reads best on it, at 4.83:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #3F8294 |
| RGB | rgb(63, 130, 148) |
| HSL | hsl(193, 40%, 41%) |
| OKLCH | oklch(57% 0.073 217.8) |
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 #3F8294 | 4.34:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #3F8294 | 4.83:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #3F8294 text on white | 4.34:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #3F8294 text on black | 4.83:1 | AA | Lc -31.7 | 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
#E3EBEE
oklch(93.5% 0.009 222.1)
-
Step 200
200
#CDDCE1
oklch(88.5% 0.018 219.7)
-
Step 300
300
#AAC6CF
oklch(80.9% 0.033 219.2)
-
Step 400
400
#7BA9B6
oklch(70.6% 0.053 217.1)
-
Step 500
500
#5894A4
oklch(63.2% 0.067 216.8)
-
Step 600
600 (this color)
#3F8294
oklch(57% 0.073 217.8)
-
Step 700
700
#2C6A7A
oklch(49.1% 0.068 217.5)
-
Step 800
800
#265663
oklch(42.6% 0.056 218.1)
-
Step 900
900
#244751
oklch(37.6% 0.044 218.5)
-
Step 950
950
#162A2F
oklch(27% 0.027 215.5)
#3F8294 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) | #767F95 | 0.063 |
| Deuteranopia (no green cones) | #6A7594 | 0.058 |
| Tritanopia (no blue cones) | #008888 | 0.041 |
| Achromatopsia (no color) | #797979 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8294
#3F8294
oklch(57% 0.073 217.8)
- #9D6858
#9D6858
oklch(57% 0.073 37.5)
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 #3F8294, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.029
- Teal Blue #01889F ΔE 0.030
- Stormy Blue #507B9C ΔE 0.031
- Grey Blue #647D8E ΔE 0.039
- Ocean #017B92 ΔE 0.040
- Dark Cyan #008B8B ΔE 0.043
- Metallic Blue #4F738E ΔE 0.044
- Dull Blue #49759C ΔE 0.044
Use #3F8294 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.