#53687B
Closest named color: Slate (#516572). oklch(50.8% 0.039 246), rgb(83, 104, 123).
Aa
White text reads best on this color (5.77:1).
About this color
#53687B is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.039 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.016 away. White text reads best on it, at 5.77:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #53687B |
| RGB | rgb(83, 104, 123) |
| HSL | hsl(209, 19%, 40%) |
| OKLCH | oklch(50.8% 0.039 246) |
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 #53687B | 5.77:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #53687B | 3.63:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #53687B text on white | 5.77:1 | AA | Lc 78.9 | Fine for body text |
| #53687B text on black | 3.63:1 | AA large text | Lc -22.9 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D4DAE0
oklch(88.6% 0.011 247.9)
-
Step 300
300
#B7C2CC
oklch(80.9% 0.019 245.4)
-
Step 400
400
#92A3B3
oklch(70.7% 0.03 246.6)
-
Step 500
500
#778CA0
oklch(63.1% 0.039 247.1)
-
Step 600
600
#5F768B
oklch(55.5% 0.043 246.2)
-
Step 700
700 (this color)
#53687B
oklch(50.8% 0.039 246)
-
Step 800
800
#405160
oklch(42.7% 0.033 245.3)
-
Step 900
900
#37434F
oklch(37.7% 0.026 248.5)
-
Step 950
950
#20272E
oklch(26.9% 0.016 248.4)
#53687B 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) | #61687C | 0.020 |
| Deuteranopia (no green cones) | #5B647B | 0.015 |
| Tritanopia (no blue cones) | #476C6E | 0.032 |
| Achromatopsia (no color) | #666666 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #53687B
#53687B
oklch(50.8% 0.039 246)
- #75614E
#75614E
oklch(50.7% 0.039 65.3)
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 #53687B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.016
- Metallic Blue #4F738E ΔE 0.037
- Dim Gray #696969 ΔE 0.042
- Denim #3B638C ΔE 0.045
- Dusty Grape #545775 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.051
- Battleship Gray #6C757D ΔE 0.055
- Dull Blue #49759C ΔE 0.055
Use #53687B 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.