#5B677D
Closest named color: Slate (#516572). oklch(51.2% 0.038 262.5), rgb(91, 103, 125).
Aa
White text reads best on this color (5.70:1).
About this color
#5B677D is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.038 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.024 away. White text reads best on it, at 5.70:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.68:1 |
| White text | 5.70:1 |
Values
| HEX | #5B677D |
| RGB | rgb(91, 103, 125) |
| HSL | hsl(219, 16%, 42%) |
| OKLCH | oklch(51.2% 0.038 262.5) |
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 #5B677D | 5.70:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #5B677D | 3.68:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #5B677D text on white | 5.70:1 | AA | Lc 78.5 | Fine for body text |
| #5B677D text on black | 3.68:1 | AA large text | Lc -23.2 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D5D9E0
oklch(88.4% 0.011 261.8)
-
Step 300
300
#BAC1CD
oklch(80.9% 0.019 261.3)
-
Step 400
400
#97A1B4
oklch(70.7% 0.03 263.4)
-
Step 500
500
#7D8AA1
oklch(63.1% 0.038 261.9)
-
Step 600
600
#67748C
oklch(55.7% 0.041 262.7)
-
Step 700
700 (this color)
#5B677D
oklch(51.2% 0.038 262.5)
-
Step 800
800
#464F61
oklch(42.7% 0.032 264.1)
-
Step 900
900
#3B424F
oklch(37.8% 0.024 262.8)
-
Step 950
950
#22272E
oklch(27.1% 0.015 256.8)
#5B677D 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) | #60687E | 0.008 |
| Deuteranopia (no green cones) | #5D657C | 0.006 |
| Tritanopia (no blue cones) | #526B6E | 0.033 |
| Achromatopsia (no color) | #666666 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B677D
#5B677D
oklch(51.2% 0.038 262.5)
- #71654E
#71654E
oklch(51.2% 0.038 83.5)
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 #5B677D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.024
- Metallic Blue #4F738E ΔE 0.038
- Dim Gray #696969 ΔE 0.039
- Dusty Grape #545775 ΔE 0.049
- Denim #3B638C ΔE 0.050
- Battleship Gray #6C757D ΔE 0.051
- Dull Blue #49759C ΔE 0.056
- YInMn Blue #415A77 ΔE 0.056
Use #5B677D 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.