#53687F
Closest named color: Slate (#516572). oklch(50.9% 0.045 251), rgb(83, 104, 127).
Aa
White text reads best on this color (5.74:1).
About this color
#53687F is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.045 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.021 away. White text reads best on it, at 5.74:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #53687F |
| RGB | rgb(83, 104, 127) |
| HSL | hsl(211, 21%, 41%) |
| OKLCH | oklch(50.9% 0.045 251) |
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 #53687F | 5.74:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #53687F | 3.65:1 | AA large text | Lc 25.3 | Dividers and decoration only |
| #53687F text on white | 5.74:1 | AA | Lc 78.7 | Fine for body text |
| #53687F text on black | 3.65:1 | AA large text | Lc -23.1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D3DAE1
oklch(88.5% 0.012 248)
-
Step 300
300
#B7C2CE
oklch(80.9% 0.021 250.4)
-
Step 400
400
#91A3B6
oklch(70.8% 0.034 249.7)
-
Step 500
500
#768CA4
oklch(63.1% 0.044 250.8)
-
Step 600
600
#5F768F
oklch(55.7% 0.048 250.8)
-
Step 700
700 (this color)
#53687F
oklch(50.9% 0.045 251)
-
Step 800
800
#405163
oklch(42.8% 0.037 250.2)
-
Step 900
900
#364351
oklch(37.7% 0.029 250.5)
-
Step 950
950
#20272F
oklch(26.9% 0.018 251.9)
#53687F 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) | #5F6880 | 0.017 |
| Deuteranopia (no green cones) | #5A647F | 0.014 |
| Tritanopia (no blue cones) | #456D70 | 0.037 |
| Achromatopsia (no color) | #666666 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #53687F
#53687F
oklch(50.9% 0.045 251)
- #76624A
#76624A
oklch(50.9% 0.044 71.7)
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 #53687F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.021
- Metallic Blue #4F738E ΔE 0.034
- Denim #3B638C ΔE 0.041
- Dim Gray #696969 ΔE 0.046
- Dusty Grape #545775 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.051
- Dull Blue #49759C ΔE 0.051
- Dusky Blue #475F94 ΔE 0.052
Use #53687F 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.