#3C697C
Closest named color: Slate (#516572). oklch(49.6% 0.058 227.1), rgb(60, 105, 124).
Aa
White text reads best on this color (5.99:1).
About this color
#3C697C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.058 and its hue 227°. 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 5.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.50:1 |
| White text | 5.99:1 |
Values
| HEX | #3C697C |
| RGB | rgb(60, 105, 124) |
| HSL | hsl(198, 35%, 36%) |
| OKLCH | oklch(49.6% 0.058 227.1) |
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 #3C697C | 5.99:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #3C697C | 3.50:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #3C697C text on white | 5.99:1 | AA | Lc 79.9 | Fine for body text |
| #3C697C text on black | 3.50:1 | AA large text | Lc -22.0 | 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
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CFDBE1
oklch(88.4% 0.015 229)
-
Step 300
300
#AFC5CF
oklch(81% 0.028 226.9)
-
Step 400
400
#84A7B7
oklch(70.8% 0.045 227.5)
-
Step 500
500
#6491A5
oklch(63.2% 0.057 227.5)
-
Step 600
600
#4A7B90
oklch(55.7% 0.062 227.3)
-
Step 700
700 (this color)
#3C697C
oklch(49.6% 0.058 227.1)
-
Step 800
800
#315464
oklch(42.6% 0.048 228.9)
-
Step 900
900
#2B4651
oklch(37.7% 0.038 225.7)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#3C697C 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) | #5F677D | 0.044 |
| Deuteranopia (no green cones) | #56607C | 0.039 |
| Tritanopia (no blue cones) | #196F6F | 0.042 |
| Achromatopsia (no color) | #636363 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C697C
#3C697C
oklch(49.6% 0.058 227.1)
- #7E5845
#7E5845
oklch(49.6% 0.058 47.5)
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 #3C697C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.027
- Denim #3B638C ΔE 0.036
- YInMn Blue #415A77 ΔE 0.044
- Metallic Blue #4F738E ΔE 0.045
- Dark Aqua #05696B ΔE 0.047
- Deep Turquoise #017374 ΔE 0.047
- Sea Blue #047495 ΔE 0.048
- Deep Aqua #08787F ΔE 0.050
Use #3C697C 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.