#3A6770
Closest named color: Slate (#516572). oklch(48.5% 0.052 211.9), rgb(58, 103, 112).
Aa
White text reads best on this color (6.26:1).
About this color
#3A6770 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.052 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.028 away. White text reads best on it, at 6.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.35:1 |
| White text | 6.26:1 |
Values
| HEX | #3A6770 |
| RGB | rgb(58, 103, 112) |
| HSL | hsl(190, 32%, 33%) |
| OKLCH | oklch(48.5% 0.052 211.9) |
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 #3A6770 | 6.26:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #3A6770 | 3.35:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #3A6770 text on white | 6.26:1 | AA | Lc 81.1 | Fine for body text |
| #3A6770 text on black | 3.35:1 | AA large text | Lc -20.8 | 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
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AFC5CA
oklch(80.8% 0.025 212.9)
-
Step 400
400
#84A8AF
oklch(70.7% 0.041 210.8)
-
Step 500
500
#65929B
oklch(63.1% 0.051 211.4)
-
Step 600
600
#4B7C86
oklch(55.5% 0.055 212)
-
Step 700
700 (this color)
#3A6770
oklch(48.5% 0.052 211.9)
-
Step 800
800
#32555D
oklch(42.6% 0.043 213.9)
-
Step 900
900
#2C464C
oklch(37.6% 0.033 213.8)
-
Step 950
950
#1A292C
oklch(26.9% 0.021 211.4)
#3A6770 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) | #606471 | 0.049 |
| Deuteranopia (no green cones) | #575E70 | 0.043 |
| Tritanopia (no blue cones) | #1F6B6A | 0.028 |
| Achromatopsia (no color) | #606060 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A6770
#3A6770
oklch(48.5% 0.052 211.9)
- #7A544D
#7A544D
oklch(48.5% 0.052 30.7)
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 #3A6770, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.028
- Dark Aqua #05696B ΔE 0.034
- Deep Turquoise #017374 ΔE 0.043
- Dark Aquamarine #017371 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.046
- Petrol #005F6A ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.050
- Denim #3B638C ΔE 0.051
Use #3A6770 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.