#3E687D
Closest named color: Slate (#516572). oklch(49.5% 0.058 231.3), rgb(62, 104, 125).
Aa
White text reads best on this color (6.03:1).
About this color
#3E687D is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.058 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.026 away. White text reads best on it, at 6.03:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.48:1 |
| White text | 6.03:1 |
Values
| HEX | #3E687D |
| RGB | rgb(62, 104, 125) |
| HSL | hsl(200, 34%, 37%) |
| OKLCH | oklch(49.5% 0.058 231.3) |
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 #3E687D | 6.03:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #3E687D | 3.48:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #3E687D text on white | 6.03:1 | AA | Lc 80.0 | Fine for body text |
| #3E687D text on black | 3.48:1 | AA large text | Lc -21.8 | 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
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AFC4D0
oklch(80.8% 0.029 232.8)
-
Step 400
400
#85A6B8
oklch(70.7% 0.045 232.1)
-
Step 500
500
#6690A6
oklch(63.1% 0.057 231.6)
-
Step 600
600
#4C7A91
oklch(55.6% 0.062 231.1)
-
Step 700
700 (this color)
#3E687D
oklch(49.5% 0.058 231.3)
-
Step 800
800
#335465
oklch(42.8% 0.048 231.9)
-
Step 900
900
#2D4552
oklch(37.6% 0.037 232.7)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#3E687D 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) | #5E677E | 0.041 |
| Deuteranopia (no green cones) | #55607D | 0.035 |
| Tritanopia (no blue cones) | #1E6E6F | 0.043 |
| Achromatopsia (no color) | #636363 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E687D
#3E687D
oklch(49.5% 0.058 231.3)
- #7D5943
#7D5943
oklch(49.6% 0.058 52.4)
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 #3E687D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.026
- Denim #3B638C ΔE 0.033
- YInMn Blue #415A77 ΔE 0.041
- Metallic Blue #4F738E ΔE 0.045
- Sea Blue #047495 ΔE 0.049
- Dark Aqua #05696B ΔE 0.050
- Peacock Blue #016795 ΔE 0.051
- Deep Turquoise #017374 ΔE 0.052
Use #3E687D 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.