#5B697C
Closest named color: Slate (#516572). oklch(51.6% 0.035 256.1), rgb(91, 105, 124).
Aa
White text reads best on this color (5.59:1).
About this color
#5B697C is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.035 and its hue 256°. 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 5.59:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.75:1 |
| White text | 5.59:1 |
Values
| HEX | #5B697C |
| RGB | rgb(91, 105, 124) |
| HSL | hsl(215, 15%, 42%) |
| OKLCH | oklch(51.6% 0.035 256.1) |
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 #5B697C | 5.59:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #5B697C | 3.75:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #5B697C text on white | 5.59:1 | AA | Lc 77.9 | Fine for body text |
| #5B697C text on black | 3.75:1 | AA large text | Lc -23.8 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D5D9DF
oklch(88.4% 0.009 258.3)
-
Step 300
300
#BAC1CC
oklch(80.9% 0.017 259.4)
-
Step 400
400
#96A2B2
oklch(70.8% 0.027 255.6)
-
Step 500
500
#7C8B9F
oklch(63.2% 0.035 255.6)
-
Step 600
600
#657589
oklch(55.7% 0.037 254.1)
-
Step 700
700 (this color)
#5B697C
oklch(51.6% 0.035 256.1)
-
Step 800
800
#45505F
oklch(42.7% 0.029 256.2)
-
Step 900
900
#3A424E
oklch(37.7% 0.023 258.4)
-
Step 950
950
#22272D
oklch(27% 0.013 253)
#5B697C 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) | #626A7D | 0.011 |
| Deuteranopia (no green cones) | #5F667C | 0.010 |
| Tritanopia (no blue cones) | #526D6F | 0.030 |
| Achromatopsia (no color) | #686868 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B697C
#5B697C
oklch(51.6% 0.035 256.1)
- #746552
#746552
oklch(51.6% 0.034 73.5)
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 #5B697C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.024
- Dim Gray #696969 ΔE 0.035
- Metallic Blue #4F738E ΔE 0.035
- Battleship Gray #6C757D ΔE 0.045
- Denim #3B638C ΔE 0.054
- Dull Blue #49759C ΔE 0.054
- Dusty Grape #545775 ΔE 0.055
- YInMn Blue #415A77 ΔE 0.060
Use #5B697C 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.