#3C697F
Closest named color: Slate (#516572). oklch(49.8% 0.061 230.9), rgb(60, 105, 127).
Aa
White text reads best on this color (5.96:1).
About this color
#3C697F is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.061 and its hue 231°. 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 5.96:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.51:1 |
| White text | 5.96:1 |
Values
| HEX | #3C697F |
| RGB | rgb(60, 105, 127) |
| HSL | hsl(200, 36%, 37%) |
| OKLCH | oklch(49.8% 0.061 230.9) |
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 #3C697F | 5.96:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #3C697F | 3.51:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #3C697F text on white | 5.96:1 | AA | Lc 79.7 | Fine for body text |
| #3C697F text on black | 3.51:1 | AA large text | Lc -22.1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AEC5D0
oklch(81% 0.029 228.2)
-
Step 400
400
#83A7B9
oklch(70.8% 0.047 229.9)
-
Step 500
500
#6391A7
oklch(63.2% 0.06 229.4)
-
Step 600
600
#497A93
oklch(55.5% 0.066 231.9)
-
Step 700
700 (this color)
#3C697F
oklch(49.8% 0.061 230.9)
-
Step 800
800
#315466
oklch(42.7% 0.05 232)
-
Step 900
900
#2B4653
oklch(37.8% 0.04 229.9)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#3C697F 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) | #5E6880 | 0.042 |
| Deuteranopia (no green cones) | #55607F | 0.038 |
| Tritanopia (no blue cones) | #166F70 | 0.045 |
| Achromatopsia (no color) | #636363 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C697F
#3C697F
oklch(49.8% 0.061 230.9)
- #7F5942
#7F5942
oklch(49.9% 0.061 52)
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 #3C697F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.029
- Denim #3B638C ΔE 0.032
- Metallic Blue #4F738E ΔE 0.043
- YInMn Blue #415A77 ΔE 0.044
- Sea Blue #047495 ΔE 0.045
- Peacock Blue #016795 ΔE 0.049
- Deep Turquoise #017374 ΔE 0.050
- Ocean Blue #03719C ΔE 0.051
Use #3C697F 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.