#647572
Closest named color: Battleship Gray (#6C757D). oklch(54.7% 0.021 183.7), rgb(100, 117, 114).
Aa
White text reads best on this color (4.85:1).
About this color
#647572 is a medium-dark close to neutral grey. In OKLCH its lightness is 55%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Battleship Gray (#6C757D), ΔE 0.022 away. White text reads best on it, at 4.85:1.
| Hue family | Neutrals |
| Lightness | medium-dark (55%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.32:1 |
| White text | 4.85:1 |
Values
| HEX | #647572 |
| RGB | rgb(100, 117, 114) |
| HSL | hsl(169, 8%, 43%) |
| OKLCH | oklch(54.7% 0.021 183.7) |
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 #647572 | 4.85:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #647572 | 4.32:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #647572 text on white | 4.85:1 | AA | Lc 73.6 | Content text, not long reading |
| #647572 text on black | 4.32:1 | AA large text | Lc -28.0 | 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 600.
-
Step 50
50
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D6DAD9
oklch(88.5% 0.005 179.7)
-
Step 300
300
#BAC3C1
oklch(81% 0.01 181.3)
-
Step 400
400
#97A4A1
oklch(70.7% 0.015 180.5)
-
Step 500
500
#7D8D8B
oklch(63% 0.019 187.6)
-
Step 600
600 (this color)
#647572
oklch(54.7% 0.021 183.7)
-
Step 700
700
#556462
oklch(49% 0.019 186.8)
-
Step 800
800
#465250
oklch(42.7% 0.016 184.5)
-
Step 900
900
#3B4442
oklch(37.8% 0.012 180.8)
-
Step 950
950
#222827
oklch(27.1% 0.009 184.6)
#647572 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) | #737372 | 0.022 |
| Deuteranopia (no green cones) | #707072 | 0.022 |
| Tritanopia (no blue cones) | #607674 | 0.006 |
| Achromatopsia (no color) | #717171 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647572
#647572
oklch(54.7% 0.021 183.7)
- #7C6C6F
#7C6C6F
oklch(54.7% 0.021 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 #647572, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.022
- Battleship Grey #6B7C85 ΔE 0.034
- Dim Gray #696969 ΔE 0.034
- Grey Blue #647D8E ΔE 0.043
- Steel Grey #6F828A ΔE 0.050
- Medium Grey #7D7F7C ΔE 0.050
- Metallic Blue #4F738E ΔE 0.052
- Slate Gray #708090 ΔE 0.053
Use #647572 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.