#5B6073
Closest named color: Slate (#516572). oklch(49.2% 0.031 273.6), rgb(91, 96, 115).
Aa
White text reads best on this color (6.23:1).
About this color
#5B6073 is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.031 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.020 away. White text reads best on it, at 6.23:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.36:1 |
| White text | 6.23:1 |
Values
| HEX | #5B6073 |
| RGB | rgb(91, 96, 115) |
| HSL | hsl(228, 12%, 40%) |
| OKLCH | oklch(49.2% 0.031 273.6) |
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 #5B6073 | 6.23:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #5B6073 | 3.36:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #5B6073 text on white | 6.23:1 | AA | Lc 81.1 | Fine for body text |
| #5B6073 text on black | 3.36:1 | AA large text | Lc -20.8 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9EAED
oklch(93.7% 0.004 271.4)
-
Step 200
200
#D7D9DF
oklch(88.6% 0.008 271.3)
-
Step 300
300
#BDC0CB
oklch(80.9% 0.016 273.8)
-
Step 400
400
#9BA0B0
oklch(70.7% 0.024 271.9)
-
Step 500
500
#83899D
oklch(63.2% 0.031 272.3)
-
Step 600
600
#6D7287
oklch(55.5% 0.033 274.7)
-
Step 700
700 (this color)
#5B6073
oklch(49.2% 0.031 273.6)
-
Step 800
800
#4A4E5D
oklch(42.6% 0.025 273.5)
-
Step 900
900
#3E414D
oklch(37.7% 0.021 274.3)
-
Step 950
950
#24262D
oklch(27% 0.013 272.9)
#5B6073 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) | #5B6274 | 0.006 |
| Deuteranopia (no green cones) | #596073 | 0.003 |
| Tritanopia (no blue cones) | #556366 | 0.028 |
| Achromatopsia (no color) | #616161 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B6073
#5B6073
oklch(49.2% 0.031 273.6)
- #67614D
#67614D
oklch(49.2% 0.031 93.3)
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 #5B6073, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.020
- Dusty Grape #545775 ΔE 0.031
- Dim Gray #696969 ΔE 0.043
- YInMn Blue #415A77 ΔE 0.043
- Dusk #4E5481 ΔE 0.053
- Denim #3B638C ΔE 0.053
- Dusky Blue #475F94 ΔE 0.060
- Metallic Blue #4F738E ΔE 0.060
Use #5B6073 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.