#3A656D
Closest named color: Slate (#516572). oklch(47.9% 0.049 210.8), rgb(58, 101, 109).
Aa
White text reads best on this color (6.43:1).
About this color
#3A656D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.049 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.030 away. White text reads best on it, at 6.43:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.26:1 |
| White text | 6.43:1 |
Values
| HEX | #3A656D |
| RGB | rgb(58, 101, 109) |
| HSL | hsl(189, 31%, 33%) |
| OKLCH | oklch(47.9% 0.049 210.8) |
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 #3A656D | 6.43:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #3A656D | 3.26:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #3A656D text on white | 6.43:1 | AA | Lc 81.9 | Fine for body text |
| #3A656D text on black | 3.26:1 | AA large text | Lc -20.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D0DCDE
oklch(88.6% 0.013 208.8)
-
Step 300
300
#B0C5C9
oklch(80.9% 0.024 210.4)
-
Step 400
400
#86A7AE
oklch(70.6% 0.038 212)
-
Step 500
500
#66929A
oklch(63.1% 0.049 210.1)
-
Step 600
600
#4D7C85
oklch(55.6% 0.053 211)
-
Step 700
700 (this color)
#3A656D
oklch(47.9% 0.049 210.8)
-
Step 800
800
#33555C
oklch(42.6% 0.041 212.1)
-
Step 900
900
#2D464B
oklch(37.6% 0.032 211.5)
-
Step 950
950
#1B292C
oklch(27% 0.02 212.4)
#3A656D 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) | #5E626E | 0.047 |
| Deuteranopia (no green cones) | #565C6D | 0.043 |
| Tritanopia (no blue cones) | #226967 | 0.027 |
| Achromatopsia (no color) | #5E5E5E | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A656D
#3A656D
oklch(47.9% 0.049 210.8)
- #77534C
#77534C
oklch(47.9% 0.05 31.3)
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 #3A656D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.030
- Dark Aqua #05696B ΔE 0.034
- YInMn Blue #415A77 ΔE 0.043
- Petrol #005F6A ΔE 0.044
- Dark Green Blue #1F6357 ΔE 0.046
- Deep Turquoise #017374 ΔE 0.047
- Dark Aquamarine #017371 ΔE 0.048
- Denim #3B638C ΔE 0.054
Use #3A656D 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.