#657171
Closest named color: Battleship Gray (#6C757D). oklch(53.9% 0.014 196.7), rgb(101, 113, 113).
Aa
White text reads best on this color (5.05:1).
About this color
#657171 is a medium-dark close to neutral grey. In OKLCH its lightness is 54%, its chroma 0.014. It has too little chroma to lean warm or cool. The nearest named color is Battleship Gray (#6C757D), ΔE 0.023 away. White text reads best on it, at 5.05:1.
| Hue family | Neutrals |
| Lightness | medium-dark (54%) |
| Chroma | close to neutral grey (0.014) |
| Temperature | neutral |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #657171 |
| RGB | rgb(101, 113, 113) |
| HSL | hsl(180, 6%, 42%) |
| OKLCH | oklch(53.9% 0.014 196.7) |
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 #657171 | 5.05:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #657171 | 4.15:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #657171 text on white | 5.05:1 | AA | Lc 74.9 | Content text, not long reading |
| #657171 text on black | 4.15:1 | AA large text | Lc -26.8 | 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 600.
-
Step 50
50
#F5F5F5
oklch(97% 0 0)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D6DADA
oklch(88.5% 0.004 197.1)
-
Step 300
300
#BCC2C2
oklch(80.9% 0.007 197)
-
Step 400
400
#9AA3A3
oklch(70.8% 0.01 196.9)
-
Step 500
500
#818C8C
oklch(63.1% 0.013 196.8)
-
Step 600
600 (this color)
#657171
oklch(53.9% 0.014 196.7)
-
Step 700
700
#586363
oklch(49% 0.014 196.7)
-
Step 800
800
#485151
oklch(42.7% 0.012 196.7)
-
Step 900
900
#3C4343
oklch(37.6% 0.009 196.8)
-
Step 950
950
#232727
oklch(26.9% 0.006 196.8)
#657171 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) | #6F7071 | 0.015 |
| Deuteranopia (no green cones) | #6D6E71 | 0.014 |
| Tritanopia (no blue cones) | #627271 | 0.005 |
| Achromatopsia (no color) | #6F6F6F | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #657171, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.023
- Dim Gray #696969 ΔE 0.023
- Battleship Grey #6B7C85 ΔE 0.040
- Grey Blue #647D8E ΔE 0.048
- Slate #516572 ΔE 0.049
- Metallic Blue #4F738E ΔE 0.050
- Grey Brown #7F7053 ΔE 0.055
- Medium Grey #7D7F7C ΔE 0.057
Use #657171 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.