#3A6971
Closest named color: Slate (#516572). oklch(49.1% 0.053 209.6), rgb(58, 105, 113).
Aa
White text reads best on this color (6.10:1).
About this color
#3A6971 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.053 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.029 away. White text reads best on it, at 6.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.43:1 |
| White text | 6.10:1 |
Values
| HEX | #3A6971 |
| RGB | rgb(58, 105, 113) |
| HSL | hsl(189, 32%, 34%) |
| OKLCH | oklch(49.1% 0.053 209.6) |
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 #3A6971 | 6.10:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #3A6971 | 3.43:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #3A6971 text on white | 6.10:1 | AA | Lc 80.4 | Fine for body text |
| #3A6971 text on black | 3.43:1 | AA large text | Lc -21.5 | 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
#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
#63939B
oklch(63.2% 0.053 209)
-
Step 600
600
#497D86
oklch(55.7% 0.057 209.7)
-
Step 700
700 (this color)
#3A6971
oklch(49.1% 0.053 209.6)
-
Step 800
800
#31565C
oklch(42.8% 0.043 208.9)
-
Step 900
900
#2B474B
oklch(37.7% 0.034 207.2)
-
Step 950
950
#1A292C
oklch(26.9% 0.021 211.4)
#3A6971 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) | #626672 | 0.051 |
| Deuteranopia (no green cones) | #595F71 | 0.047 |
| Tritanopia (no blue cones) | #1E6D6B | 0.028 |
| Achromatopsia (no color) | #626262 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A6971
#3A6971
oklch(49.1% 0.053 209.6)
- #7C554F
#7C554F
oklch(49% 0.053 28.9)
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 #3A6971, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.029
- Dark Aqua #05696B ΔE 0.035
- Deep Turquoise #017374 ΔE 0.039
- Dark Aquamarine #017371 ΔE 0.040
- Deep Aqua #08787F ΔE 0.047
- YInMn Blue #415A77 ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.052
- Petrol #005F6A ΔE 0.052
Use #3A6971 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.