#556271
Closest named color: Slate (#516572). oklch(49.1% 0.029 252.1), rgb(85, 98, 113).
Aa
White text reads best on this color (6.22:1).
About this color
#556271 is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.010 away. White text reads best on it, at 6.22:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.37:1 |
| White text | 6.22:1 |
Values
| HEX | #556271 |
| RGB | rgb(85, 98, 113) |
| HSL | hsl(212, 14%, 39%) |
| OKLCH | oklch(49.1% 0.029 252.1) |
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 #556271 | 6.22:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #556271 | 3.37:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #556271 text on white | 6.22:1 | AA | Lc 81.1 | Fine for body text |
| #556271 text on black | 3.37:1 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D5D9DE
oklch(88.4% 0.008 253.9)
-
Step 300
300
#BAC1CA
oklch(80.8% 0.015 254.6)
-
Step 400
400
#97A2AF
oklch(70.8% 0.023 252.6)
-
Step 500
500
#7D8B9B
oklch(63.1% 0.029 251.8)
-
Step 600
600
#667586
oklch(55.6% 0.032 251.7)
-
Step 700
700 (this color)
#556271
oklch(49.1% 0.029 252.1)
-
Step 800
800
#46505C
oklch(42.7% 0.024 253.1)
-
Step 900
900
#3B424B
oklch(37.6% 0.018 254.7)
-
Step 950
950
#22272C
oklch(27% 0.012 248.3)
#556271 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) | #5D6272 | 0.012 |
| Deuteranopia (no green cones) | #595F71 | 0.010 |
| Tritanopia (no blue cones) | #4D6567 | 0.024 |
| Achromatopsia (no color) | #616161 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556271
#556271
oklch(49.1% 0.029 252.1)
- #6B5E4F
#6B5E4F
oklch(49% 0.029 71.1)
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 #556271, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.010
- Dusty Grape #545775 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.041
- Dim Gray #696969 ΔE 0.042
- Denim #3B638C ΔE 0.051
- Dusk #4E5481 ΔE 0.057
- Metallic Blue #4F738E ΔE 0.058
- Dusky Blue #475F94 ΔE 0.062
Use #556271 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.