#3B6973
Closest named color: Slate (#516572). oklch(49.2% 0.053 213.2), rgb(59, 105, 115).
Aa
White text reads best on this color (6.07:1).
About this color
#3B6973 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.053 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.027 away. White text reads best on it, at 6.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.45:1 |
| White text | 6.07:1 |
Values
| HEX | #3B6973 |
| RGB | rgb(59, 105, 115) |
| HSL | hsl(191, 32%, 34%) |
| OKLCH | oklch(49.2% 0.053 213.2) |
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 #3B6973 | 6.07:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #3B6973 | 3.45:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #3B6973 text on white | 6.07:1 | AA | Lc 80.3 | Fine for body text |
| #3B6973 text on black | 3.45:1 | AA large text | Lc -21.6 | 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
#CFDCDF
oklch(88.6% 0.015 213.1)
-
Step 300
300
#AFC5CB
oklch(80.9% 0.025 215.9)
-
Step 400
400
#84A8B0
oklch(70.8% 0.041 212.8)
-
Step 500
500
#64929D
oklch(63.1% 0.052 214.3)
-
Step 600
600
#4A7C87
oklch(55.5% 0.056 213.3)
-
Step 700
700 (this color)
#3B6973
oklch(49.2% 0.053 213.2)
-
Step 800
800
#31555D
oklch(42.6% 0.043 213.5)
-
Step 900
900
#2C464C
oklch(37.6% 0.033 213.8)
-
Step 950
950
#1A292D
oklch(26.9% 0.022 216.2)
#3B6973 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) | #616674 | 0.048 |
| Deuteranopia (no green cones) | #585F73 | 0.045 |
| Tritanopia (no blue cones) | #1F6D6C | 0.029 |
| Achromatopsia (no color) | #626262 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B6973
#3B6973
oklch(49.2% 0.053 213.2)
- #7C564D
#7C564D
oklch(49.1% 0.053 33.8)
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 #3B6973, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.027
- Dark Aqua #05696B ΔE 0.037
- Deep Turquoise #017374 ΔE 0.040
- Dark Aquamarine #017371 ΔE 0.042
- Deep Aqua #08787F ΔE 0.048
- YInMn Blue #415A77 ΔE 0.049
- Denim #3B638C ΔE 0.050
- Petrol #005F6A ΔE 0.053
Use #3B6973 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.