#55584E
Closest named color: Slate (#516572). oklch(45.4% 0.016 120.6), rgb(85, 88, 78).
Aa
White text reads best on this color (7.26:1).
About this color
#55584E is a medium-dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.058 away. White text reads best on it, at 7.26:1.
| Hue family | Neutrals |
| Lightness | medium-dark (45%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 2.89:1 |
| White text | 7.26:1 |
Values
| HEX | #55584E |
| RGB | rgb(85, 88, 78) |
| HSL | hsl(78, 6%, 33%) |
| OKLCH | oklch(45.4% 0.016 120.6) |
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 #55584E | 7.26:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #55584E | 2.89:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #55584E text on white | 7.26:1 | AAA | Lc 85.2 | Fine for body text |
| #55584E text on black | 2.89:1 | Fails | Lc -16.8 | 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 800.
-
Step 50
50
#F5F5F5
oklch(97% 0 0)
-
Step 100
100
#E9EAE8
oklch(93.6% 0.003 128.5)
-
Step 200
200
#D8DAD6
oklch(88.6% 0.006 128.5)
-
Step 300
300
#BFC2BB
oklch(81% 0.01 125.7)
-
Step 400
400
#9FA298
oklch(70.7% 0.015 120.4)
-
Step 500
500
#878B7E
oklch(63% 0.02 120.9)
-
Step 600
600
#717568
oklch(55.5% 0.02 121)
-
Step 700
700
#5F6356
oklch(49.2% 0.021 121.1)
-
Step 800
800 (this color)
#55584E
oklch(45.4% 0.016 120.6)
-
Step 900
900
#40433B
oklch(37.7% 0.014 123.8)
-
Step 950
950
#262723
oklch(27% 0.007 118.3)
#55584E 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) | #59574D | 0.007 |
| Deuteranopia (no green cones) | #59574E | 0.007 |
| Tritanopia (no blue cones) | #565755 | 0.013 |
| Achromatopsia (no color) | #575757 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55584E
#55584E
oklch(45.4% 0.016 120.6)
- #58555E
#58555E
oklch(45.6% 0.015 301)
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 #55584E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.058
- Dark Green Blue #1F6357 ΔE 0.063
- Dark Slate Gray #2F4F4F ΔE 0.063
- Dusty Grape #545775 ΔE 0.065
- Dim Gray #696969 ΔE 0.068
- YInMn Blue #415A77 ΔE 0.069
- Pine #2B5D34 ΔE 0.075
- Olive Brown #645403 ΔE 0.077
Use #55584E 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.