#3F6D76
Closest named color: Slate (#516572). oklch(50.5% 0.052 211.5), rgb(63, 109, 118).
Aa
White text reads best on this color (5.73:1).
About this color
#3F6D76 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.052 and its hue 211°. 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 5.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.66:1 |
| White text | 5.73:1 |
Values
| HEX | #3F6D76 |
| RGB | rgb(63, 109, 118) |
| HSL | hsl(190, 30%, 35%) |
| OKLCH | oklch(50.5% 0.052 211.5) |
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 #3F6D76 | 5.73:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #3F6D76 | 3.66:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #3F6D76 text on white | 5.73:1 | AA | Lc 78.6 | Fine for body text |
| #3F6D76 text on black | 3.66:1 | AA large text | Lc -23.2 | 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
#64929C
oklch(63.1% 0.052 212.7)
-
Step 600
600
#4A7C86
oklch(55.5% 0.056 211.8)
-
Step 700
700 (this color)
#3F6D76
oklch(50.5% 0.052 211.5)
-
Step 800
800
#31565D
oklch(42.8% 0.044 211)
-
Step 900
900
#2C474C
oklch(37.8% 0.034 210.4)
-
Step 950
950
#1A292C
oklch(26.9% 0.021 211.4)
#3F6D76 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) | #656A77 | 0.049 |
| Deuteranopia (no green cones) | #5D6376 | 0.046 |
| Tritanopia (no blue cones) | #257170 | 0.028 |
| Achromatopsia (no color) | #666666 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F6D76
#3F6D76
oklch(50.5% 0.052 211.5)
- #805A52
#805A52
oklch(50.6% 0.052 32.2)
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 #3F6D76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.029
- Deep Turquoise #017374 ΔE 0.038
- Deep Aqua #08787F ΔE 0.040
- Dark Aquamarine #017371 ΔE 0.040
- Metallic Blue #4F738E ΔE 0.045
- Dark Aqua #05696B ΔE 0.045
- Bluegreen #017A79 ΔE 0.047
- Sea Blue #047495 ΔE 0.053
Use #3F6D76 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.